Of course the other, cheaper option if your MB supports it is adding another 4850 for crossfire. Roughly the same performance as the 5850 for only $99. That is a cheap upgrade that will make all difference...the 5850 will set you back $300 and all you're gaining is DX11 support (if you have windows 7).
Unfortunately, my MB dont support crossfire. If it did, I would definitely go that route. I do have Windows 7 and it will be nice to see the directx11 games in their full glory so I can show my console buddies what they are missing out on.
Thanks again everyone for all your help. Ill be ordering my card today! Thank you AMD/ATI for bringing out such great products...I bought your stock at $2 and its doing great~! ^_^