As an S5 owner, I say you should buy it! Not only do the frames look great, they are also very light for aluminum [a mere 2.6lb] and can be built up very nicely. I got some Xero XR-1 Lite's on mine, a CR1 fork on ebay (back in '05 they came with the aluminum fork), and of course some lightweight bottle cages from probikekit.com

With a Speedster frameset all you have to do is upgrade over time, not get a whole new bike. Here's mine...

http://i125.photobucket.com/albums/p...4/100_0790.jpg

http://i125.photobucket.com/albums/p...4/100_0789.jpg

http://i125.photobucket.com/albums/p...4/100_0788.jpg