For legal reasons, I don't rip DVDs, however I do watch movies that came from Netflix (Blu-Ray). Plus, I do take advantage of Windows Media Center. For example, I've rented movies from CinemaNow for $3 (depending on a movie), and it's great! I once use TVTonic for watching content (mostly technology, but it takes a while to download content with a very fast cable modem). I plan to get an ATSC tuner, so I can record shows that came from broadcasting towers through the antenna (I get CBS HD, ABC HD, FOX HD, CW (within Fox's subchannel), and PBS, but can't get NBC due to broadcasting real channel 2 which is remapped to 40.1). I like to go to Hulu.com or Joost.com, even ABC.com or NBC.com, but my experience is not worth it because I am very comfortable with Windows Media Center.
Anyway, it's important to be open-minded. Yes, I can list the CPU and motherboard from Intel, but I'm very familiar with AMD and its pricing. With a 4850e, playing Blu-Ray is no problem. I could even rip DVDs (again, I don't want to get into legal trouble in USA). I once bought a 4050e, but could've got a 4850e for $20 more (I bought it for ~$59). So, even with a 4050e, still no problem. 780G chipset comes with a Universal Video Decoder (UVD, for short) if I remember correctly. It frees up CPU for Blu-Ray playback.
By the way, that 780G chipset supports Hybrid Crossfire.
Here's a good video card:
SAPPHIRE 100233HDMI Radeon HD 3450 256MB Video Card
If you have more money left, you can exchange the DVD Burner and go with a Blu-Ray drive if you want to watch movies.