Thanks everyone, for your feedback. I have actually ridden both TCT and OCLV, but neither ride was ideal. The bikes were not the right size and I only got to ride them around in a parking lot for about 5 minutes. So I couldn't determine much about them! One of the drawbacks to living in a super small community is that the bike shops don't have much in stock. So I only get to ride what they happen to have in the store!

I guess what it will boil down to is price. If I can get a great deal on the 5.2, I'll go for it. But otherwise I'll go with the 4.7. I'm glad to hear pros and cons of both. Considering how happy I've been with my $800 Trek 1000, I have no doubt I'll be happy with any Trek product!