Bike choosing help: r6/zx6r/gsxr6?

I have my eye on 3 bikes right now. I have done 5-6 rounds with my local org in Novice and will be doing a full season there next year as well as some WERA west events. I have my eye on 3 different bikes, and am kinda lost on which to choose. I'm coming from a 03 r6 so whichever one I choose will be a big jump.

Bikes:
09 zx6r full SS build
07 gsxr 600 full ss build
07 r6 everything minus engine work
4th option-hold out for a new gen r6(08-12)

Any help? They are all around the same price with the 07 being a bit cheaper but the savings will be erased after I get the suspension redone.

Thanks for helping a noob out

 

GSXR----very easy to fix and parts are dime a dozen. Lots of info for setup and they are still competitve