Where I work we are a year + into the transition into Revit from the flavored (Acad Arch / Acad MEP) Autocad's. While it is going rather well on the Architectural and Structural side, the engineers are a tough sell and are dragging their feet. We are a medium size firm and we do small / medium / medium-large scale projects. It is definitely being driven from the client construction end - but for good reason. The best explanation as to why it is quickly becoming a business necessity is the following example I saw somewhere that has also been echoed by the larger construction firms we partner up with. You can spend $1 to fix a problem in Design, or you can spend $10 to fix it in construction, or you can spend $30 to litigate and fix it after it is built!
You will learn a lot during your first project on how to integrate BIM into your practice. A lot of what you learn may be that you need to change your process and in turn your practice. There are tons of good references out there - here are links to two that I have found most helpfull.
http://www.bim.construction.com/research/
http://www.engr.psu.edu/ae/cic/BIMEx/
The trick will be to learn how to take advantage of BIM's advances by getting up to speed quickly and advancing your use and implementation to the next level, and then on to the next. It is sometimes painfull / time consuming / costly when you first adopt. But the sooner you commit and gain enough experience to move on to the next level(s) - the sooner you will start to see the many benefits and reap the rewards.
Not actually on a soapbox here - I for one wasn't all that interested in making the switch. I have found that the biggest obstacle for most users is the mental aspect. Also - people in this industry that can not put a building or parts of one together will struggle immensely, and are the most likely to resist the change. You are working with "things" (intelligent building elements) now instead of worrying about comands you need to memorize to develop linework that represents (in 2 dimensions) these same "things".
While the two (Revit & sketchup) don't necessarily play together very well - we have found that we still need to use them together due to the clunky schematic modeling tools in Revit. The efficient modeling practices you learned in working with SU will serve you well if you choose Revit for BIM as it is too easy for some to fall into the trap of modeling everythig! I hate the phrase "paradigm shift", but it is appropriate in describing the current A/E/C Industy shift to BIM - which is surprisingly similar to the move I experienced 15+ years ago from hand drafting to CAD.
HTH.....Bytor