Run a dual boot on the system. If you don't like ubuntu you can format it and use the space for windows storage. This way you have both.
This.
Just an aside, I'm constantly amazed that in 2012 people don't always realize computers can run multiple OS's with ease. There's still a deep rooted sense among people that their single install of an operating system IS the computer and the concept of just quick-swapping the OS almost the same as you run different apps doesn't compute.
I'm into Hackintoshing and I still just marvel at how many people that know computers inside and out will beat their heads against the wall for days complaining on forums that they broke their *install* (as in only instance) of OSX they were tinkering around with. No matter how many times it's pointed out "NEVER INSTALL JUST ONE COPY OF AN OS AND DEPEND ON IT WITHOUT A BACKUP!!!" it's still like speaking a foreign language to get some people's brains to realize: the computer will boot INFINITE instances of OSX or any other OS! Even off the same hard drive. WHY would you bank everything and valuable data/time/hair loss etc./dicking around with just ONE instance and then complain how you 'bricked' your computer because that one instance got screwed up?
Heh. Sorry for the rant, but this question just reminded me of that. Just dual boot. Quad boot. Boot multiple copies of the same OS. Try every version of Linux until you find the one(s) you like. Operating systems, especially free ones, don't need to be either/or propositions.