I'm building a new PC. I know it's not as much of a powerhouse as some posted here, but let me know what you think. Any tips are welcome.

Cooler Master Haf X Case (Huge and lots of cooling space, 3 fans!)
ASUS Crosshair IV Extreme AM3 5x PCIe2.0 x16 (Pretty nice mobo w/ lots of room for future expansion)
AMD Phenom II X6 1100T Black Edition (6 Cores, 3.7GHz; 1.5MB L1 Cache + 3 MB L2 Cache + 6 MB L3 Cache)
16Gb Dual channel DDR3 at 1600 MHz (mobo only supports up to 16Gb but can handle up to 2133 MHz DDR3)
ATI 5830 1Gb 256 bit DDR5 Crossfire Enabled Video Card (will get a second one or maybe two bigger ones later)
250 GB 7200 RPM 64 MB Cache HDD x4 in RAID 0 array - 1TB total (RAID 0 across 4 HDDs for faster overall read/write speed; only used for playing games / stuff that requires speed to increase performance)
2 TB 5400 RPM 64 MB Cache HDD (for storing my hoards of videos, backed-up games, etc.)
Coolmax 950w SLI and Crossfire ready modular PSU (lots of connectors and decent power output)

Not bothering with liquid cooled because unless you are overclocking, air cooling is fine. Plus, if you can't cool the ambient temperature in your reservoir below the ambient temperature of the case it's really no better than air cooled since you can't suck heat away from the components any faster. Water heats up and cools down much slower than air, so immediate efficiency would actually be less than with air cooled, though I'm thinking about building a thermoelectric cooling system eventually... when I can figure out how to sap that much heat out of the case lol.

I welcome all input on the subject, but fair warning - I will debate with you about it. Additional note - I said "debate"; I'm not gonna argue with some jackass who wants to sound smart on a forum.

I've done a great deal of research into these cooling systems. There is no doubt that a liquid cooled system CAN be more efficient than an air cooled system, but my old college physics professor (who is the super-est supergeek I've ever met) agrees that if your ambient temperature in your reservoir is not lower than the surrounding air temperature then you are actually losing heat sinking efficiency at the point of contact. On that note, I'm sure there are other liquid coolants that would have a better heat sinking and dissipating efficiency than water, but I don't think it would be enough to justify the cost of a liquid cooled system vs. the free fans & heat sinks that come with the components unless you were anticipating higher than factory heat levels (i.e. overclocking).

I might look into OC'ing the processor and video cards at a later time, at which point I'll probably move to a liquid cooled system and drill holes in my freezer to store the reservoir in it!
I'd love to read some educated discussion about it from the FFXI community, in addition to the hundreds of hours I've been spending reading overclocking forums and stuff lol.