A tough choice, need some help please.

A while back while building my current computer up, I had slowly built it from a lowly piece of trash to a prety decent machine.. Although, I had bought a prescott core P4 which , I don't truely regret buying, but none the less, I had wished I had bought a northwood core just because of the fact that it runs, alot...alot....alot cooler.

Ok, well after being addicted to a game , I was glad to quit playing, I had found a person who had wanted to buy the account off of me, he had also offered some trade with the account, which consisted of some Kingston Dual Channel DDR pc3200 2x512mb ram, pretty much brand new.

At the moment, I am using pc3700 ddr XMS Twinx Corsair dual channel ddr 2x256mb ram. Atm I have it running at 400mhz, since I really want to try an keep this as stock as possible with out over heating , since usually with ambient tempetures around 70-75F' the case temp is usually reading around 40-44C with the cpu running at 64-69C'....an thats usually always the same temp, since most of all the fans are tempeture regulated. Now personally being 18, I've built this computer up out of money from working an don't feel like paying for a new part incase i screw something up lol. An since i am moving it makes my cash a little more strapped...

So, my question is would using the<A HREF="http://www.newegg.com/app/ViewProductDesc.asp?description=20-141-423&depa=0" target="_new"> Kingston </A> or, would the <A HREF="http://www.corsairmicro.com/corsair/products/specs/twinx-3700.pdf" target="_new"> Corsair TwinX XMS </A> be better off keeping an just selling the Kingston ram?

BTW , I really don't want to mess around with setting my fbs at 233x14 to run the ddr at 466mhz =(...Its not that I don't know much about O/Cing, its just with my current cooling solution, i don't think it would be wise...

Current rig setup.

Prescott 2.8ghz P4 with a <A HREF="http://www.newegg.com/app/ViewProductDesc.asp?description=35-186-102&depa=0" target="_new"> Artic Cooling HSF </A> with Artic Silver 5...
MSI Neo2-P 865PE
Corsair Twinx XMS PC3700 512mb dual chan
CoolMaster 450 PFC active PSU
ATI 9500 softmodded -> 9700 (285/285)




<A HREF="http://service.futuremark.com/compare?2k1=8149895" target="_new">Veni, vidi, vici."</A>
<font color=red>"Alea Iacta Est"</font color=red>

From 3Dmarks 2k1 its showing about a 200 marks higher then using 512mb. So not to big, but none the less, should provide a tad better performance. As a follow up though. This new PSU I got that I had a question about under the PSU area kicks alot of butt. Comes with a watt meter too, which was pretty cool.

<A HREF="http://service.futuremark.com/compare?2k1=8149895" target="_new">Veni, vidi, vici."</A>
<font color=red>"Alea Iacta Est"</font color=red>