Personally, if it will truly sit around for 5 months, I'd wait, do more research on components, test ride other bikes, etc. They say you should get the bike for the type of riding you imagine doing in a year. Not to say that you should get something waaay out of your comfort zone, but know there will be a learning curve and improvements in the way you ride and confidence may come quickly. I'd hate to see you get something then realize in 6 months of riding that you really want and expect more out of your components. You should try riding something out of your price range that has some great components so you can see what the differences are. Once you feel that you might be more than happy to wait a bit. Just a suggestion. It's hard though if you've got your mind set. Plus, though 2012 model bikes are coming out and the 2011's are going to be priced down. I'd wait.
"Opportunity is missed by most people because it is dressed in overalls & looks like work" - Thomas Edison