I started on a LeMond Tourmalet (entry level relaxed geometry), and after a few years upgraded to a Mrazek BOH RD (more aggressive geometry) with an awesome set of Topolino wheels on it. I think the wheels make more difference than anything else. It's still an aluminum frame. The other big difference was switching to Campy which came on the newer bike... You might try test riding a bike with Campy or even SRAM, just to see what you think of a different groupset. I really have enjoyed the Campy though I probably wouldn't have sprung for the extra cost if the bike didn't come with it. The hoods are smaller, brake levers easier for me to grab, and thumb shifters. Since I got the new bike I rarely ride the LeMond (anyone want a LeMond? :-) Definitely test ride a few to see how they feel. I haven't regretted my upgrade in the least. You do know the perfect number of bikes is n+1, right? <g>