So this is my question, should I get a PC now that I can use as a media center and for gaming (also for streaming with my 360 and as a DVR, ect) or should I just get a MBP this year?
I would do it in this order:
1. Buy the MBP now.
2. Build a PC if you want one for gaming. A homebuilt-PC is the most bang-for-the-buck when it comes to gaming, and often a little cheaper than a brand name PC.