Hello everyone. Let me start by saying that this is a fairly standard build, using many frequently discussed components. As a first time builder, I'm primarily looking for a brief review to soothe my pre-purchase jitters. I'll primarily a MMO gamer, so I'm hoping to be able to run the more demanding games (LotRO, EQ2, etc.) at or near max settings (low resolution 1360x768), as well as have a small amount of future proofing. I'll also list a few alternates I've been considering. Thank you for all your thoughts!
Either motherboard is fine.
Even though you are not planning on using CrossFire now, I would still suggest the ASUS P5Q Pro for it's $15 premium.
If you decide to upgrade to a 1080p TV or a 24" monitor down the road, it would be nice to have the possibility to CrossFire your current GPU for higher performance.
CPU is fine.
Either of those sets of RAM will treat you fine and I could suggest another alternative. This Set will run you $27.99 after MIR and will give you the tighter timings of your more expensive kit.
Switch the hard drive to This 500Gb one for only $5 more.
Either a 4850 or 4830 should give you enough power for gaming at your resolution.
The 4830 you link is a great deal!
If you have the budget, upgrading to a 4850 for $130 after MIR would be a great way to spend it.
Both will work fine but the 4850 will give you more power for future games.