Get another bike AND a set of Zipp 404s
Then you will have a Tri bike (get a Cervelo dual or something like that... they are cheap. You can use the 404s for Tri's and general road racing. Shoot, you'd even have enough to get another set of 303's or 202's for crits or climbing. You can get teh Zipp wheels for about $1400 a set, so that would be $2800. A Cervelo Dual is like $1900 for a complete bike... and it would have a set of wheels that you could use for training.