Without wanting to speak too soon I may have 70% sorted this out by using a free software program called dxfauthor that converts GIS shapefiles (Shp.) to dxf. Seems to work well on everything but the largest files.
I'm going to try opening the others with the Google / Trimble Shapefile (*.shp) Importer.
Hi All
Sorry about the totally un-sketchupness of this question but I can't find any help anywhere else so I thought I'd ask here.
Does anybody know anything about G.I.S software?
I need to convert some free Ordnance Survey district maps that are in a tab.vector format to dwg or dxf so that I can use them in CAD. I know virtually nothing about G.I.S, I'm using a free program called Quantum GIS that opens the tab maps and they look beautiful but I can't do a lot with them as I don't really understand the software. 
Can anybody help? Thanks in advance.
By the way free Ordnance survey district maps available here: https://www.ordnancesurvey.co.uk/opendatadownload/products.html
jon
Form Z / SKP models now added http://surfacearchitects.com/index.php/olympic-wayfinding-structure/
Happy Birthday in Afrikaans: Gelukkige Verjaarsdag
Happy Birthday in Albanian: Gëzuar ditëlindjen
Happy Birthday in Aleut: Raazdinyaam Ugutaa
Happy Birthday in Arabic: عيد ميلاد سعيد
Happy Birthday in Armenian: Ծնունդդ շնորհավոր
Happy Birthday in Azerbaijani: Ad günün mübarək
Happy Birthday in Basque: Zorionak zuri
Happy Birthday in Belarusian: З днём нараджэння
Happy Birthday in Bosnian: Srećan rođendan
Happy Birthday in Bulgarian: Честит рожден ден (Čestit rožden den)
Happy Birthday in Catalan: Bon Aniversari
Happy Birthday in Chechen: Deeqhal xyyl vinde
Happy Birthday in Chinese (Cantonese): 生日快樂 (sàangyaht faailohk)
Happy Birthday in Chinese (Mandarin): 生日快樂 (Traditional). 生日快乐 (Simplified) (shēngrì kuàilè). NOTE: Use the Traditional for regions outside of Mainland China. Use Simplified for Mainland China only.
Happy Birthday in Cornish: Penn-bloedh Lowen
Happy Birthday in Croatian: Sretan rođendan
Happy Birthday in Czech: Všechno nejlepší k narozeninám!
Happy Birthday in Danish: Tillykke med fødselsdagen
Happy Birthday in Dutch: Gefeliciteerd met je verjaardag
Happy Birthday in Esperanto: Feliĉan naskiĝtagon
Happy Birthday in Estonian: Palju õnne sünnipäevaks
Happy Birthday in Faroese: Tillukku við føðingardegnum
Happy Birthday in Finnish: Hyvää syntymäpäivää
Happy Birthday in Flemish: Gelukkige verjaardag
Happy Birthday in French: Joyeux anniversaire
Happy Birthday in German: Alles Gute zum Geburtstag
Happy Birthday in Greek: Χρόνια πολλά
Happy Birthday in Hawaiian: Hauʻoli Lā Hānau
Happy Birthday in Hungarian: Boldog születésnapot kívánok
Happy Birthday in Icelandic: Til hamingju með afmælið
Happy Birthday in Indonesian: Selamat ulang tahun
Happy Birthday in Irish (Gaelic): lá Breithe shona dhuit
Happy Birthday in Italian: Buon compleanno
Happy Birthday in Japanese: お誕生日おめでとうございます
Happy Birthday in Korean: 생일축하합니다
Happy Birthday in Latvian: Apsveicu dzimšanas dienā
Happy Birthday in Lithuanian: Su gimtadieniu
Happy Birthday in Lingala: Mokolo na Mbotama Malamu
Happy Birthday in Macedonian: Среќен роденден
Happy Birthday in Malay: Selamat hari jadi
Happy Birthday in Māori: Rā whānau koa
Happy Birthday in Norwegian: Gratulerer med dagen
Happy Birthday in Persian: تولدت مبارک
Happy Birthday in Polish: Wszystkiego najlepszego z okazji urodzin
Happy Birthday in Portuguese: Feliz aniversário
Happy Birthday in Romanian: La mulţi ani
Happy Birthday in Russian: С днем рождения
Happy Birthday in Serbian: Срећан рођендан
Happy Birthday in Slovak: Všetko najlepšie
Happy Birthday in Somali: Dhalasho Farxad leh
Happy Birthday in Spanish: Feliz cumpleaños
Happy Birthday in Thai: สุขสันต์วันเกิด
Happy Birthday in Vietnamese: Chúc mừng sinh nhật
Happy Birthday in Welsh: Penblwydd Hapus
Ah good to see that we are not alone. It's different if you are a sponsor.
Hi All
I haven't posted in a while so I thought I would tell you about a very cool thing my firm have done, unfortunately you will have to follow the link as due to contractual reasons I cannot say a certain event name in connection with it or post pics here http://surfacearchitects.com/index.php/olympic-wayfinding-structure/
jon
Only just got round to reading this, brilliant update.