I've seen several '05 Speedster S1's on ebay. I picked up this 56cm S1 F/F on ebay for $400, and threw the record kit from my 05 CR1. A bit overkill for this frame... but it makes for an awesome-stiff-blastoff-racebike. Would I want to ride 100+ on it?... no, but as a weekly crit machine... its the shiznit. Exact same geometry and handling as the CR1.
Thus making a great second bike to my crazy-light-yet-all-durable-build weenie mobile.