I've had my Cannondale '04 R2000 for 6 weeks now and absolutely love it.
The frame has a lifetime warranty and come's with Mavic K SL, full ultegra, and carbon seat post. The only thing I changed was the saddle (got a fizik arione). So it's definatley good bang for buck.
Is it the best - that's personal preference, but I have no regrets with my purchase.
Next year, I'm planning to upgrade to DuraAce group, and the total cost will still be less than almost any comparitively equipped bike (especially if I can sell my Ultegra group for a good price).
Keith