Good choice. As you said yourself, it's way cheaper than 360 and it can do so much more. One of the coolest advantages of PS3 is that you can use any USB and bluetooth devices (game controllers, keyboards, mice, headsets) and don't have to buy expensive Sony accessories unless you want to. And you can upgrade the internal hdd with any regular 2.5" sata hdd and aren't forced to purchase ridiculously overpriced proprietary hdds like Microsoft are selling for Xbox 360.
As for streaming media from your PC, you should use PS3 Media Server, it's a freeware utility which can also transcode media formats that PS3 can't natively play. http://ps3mediaserver.blogspot.com/
"Well certainly with the Xbox 360, we had some challenges at the launch. Once we identified that we took control of it. We wanted to do it right by our customers. Our customers are very important to us." -Larry "Major Nelson" Hryb (10/2013). Note: RRoD was fixed with the Jasper-revision 3 years after the launch of 360
"People don't pay attention to a lot of the details."-Yusuf Mehdi explaining why Xbone DRM scheme would succeed
"Fortunately we have a product for people who aren't able to get some form of connectivity; it's called Xbox 360,”-Don Mattrick
"The region locking of the 3DS wasn't done for profits on games"-MDMAlliance
