No offense, but you made a terrible decision buying that piece of crap. Go sell it and get an actually good computer. That macbook pro has a dual core 3.4 GHz processor with 4 GB of ram. For 400$, you can get a windows desktop with a quad core 3.5 GHz processor and 8 GB of ram... That's the same speed as a 1400$ mac desktop computer for 1000$ less, and don't try to pull out the old "Macs don't get viruses though!"... They get viruses just as easily as any other computer. That's just a common misconception by the American public.
Yep, mac's indeed are very very vulnerable machines. I might even say more than Windows (7 and above) since most mac users still believe they can't be infected and thus make for extremely easy targets. Apple has also let many holes unpatched in the past (this happened very recently with iOS and oSX regarding ssl - think I'm not sure).
I would never get a mac for a personal computer. First off, NO STEAM! Second of all, they lack performance even for 1400$. For 1400$ you could get an alienware desktop computer with a quad core 4.2 GHz processor with 16 GB of ram... That just makes a mac look like a piece of slow crap that you stamp an apple logo on. Third, they lack moddability. Fourth, not good for professional programmers, music producers, or anything other than someone that got it for free from their job.
Well, I can't speak for musicians since I am not one (nor can I even play an instrument - piano and violin are on my to learn list right now) but as someone who is looking for a career as a programmer, and about to start CS, a Macbook is a pretty good choice. The ability to develop iOS apps and at the same time use Windows and any Linux distro on the same hardware is amazing. In this case, it works out pretty cheap overall. Having said that, I'm a Windows man through and through. I'll probably end up with something like an Asus Zenbook Infinity instead of Macbook (not a fan of the way Macbooks look, heh).