working space for OSX plus programs

I am looking at getting a new MBP, I have a 120gb SSD now in my acer notebook, i want to dual boot the MBP with win 7 so I can run it for work and home using both OS's.

I have approx 67gb used up now for programs on my SSD with win 7. Does OSX use less physical disk space than 7?

Would I be better off getting a segate xt hybrid drive to dual boot off?

Depends on what you want - do you want to give Windows the SSD or the Mac on the hybrid drive you are looking at

Trying to run 2 whole OSs on 120 gig is going to be extremely tight

I think so too. Just read the pro is getting updated with the flash storage system etc from the air. I'm going to wait to see what the redesign brings. Thanks for the info