David,

I went with a 7-08 about a year ago. A 7-08 can do all that a 243 can do, but that doesn't work the other way around IMO.

I did closely look at the RAR, but in the end decided to get a X7 in 7-08. I think the RAR is a great gun...but for the stock. I couldn't warm up to it and the forearm is very flexible...and I don't believe there's any aftermarkets for it yet. The X7 is close in weight and will have a 22" barrel. I can see the value the shorter RAR compact (i.e. swinging it in tight quarters).

I thought this was a good read on the subject: Ammoguide Article
Let us know what you decide.