Sure most DDR modules are running about 400Mhz out of the package, nowadays it's about the timings.  Take the Geil RAM that NGOHQ reviews for example.  The CAS timing of 1.5 allows a lot of room to loosen the timings, and bring the speed up significantly, which allows for much better performance overall.  Even if you don't plan on overclocking, the tight timings on this RAM won't slow you down.

"GeIL is a modest manufacturer that was founded in 1997. They have made other memory manufacturers

stand up and take notice, and have gained a lot of fame in a very short time. Those that may want

to know, GeIL stands for Golden Emperor International Ltd. Today we have the chance to review some

GeIL CAS 1.5 DDR memory. Memory that runs at this latency is rare and is not easy to find. This

DDR can run at 250MHz at CAS 2 with nice tight 2-2-5 timings."

Here are some more Memory articles from around the web:

src="http://www.pcper.com/site_gfx/icon-mem-small.gif" alt="Click Here to go to Memory"

• TARGET="_blank">OCZ PC4000 (2GB) Gold Edition Memory Review @ OCC

  
  
• OCZ EL DDR

PC-3500 Gold GX XTC Dual Channel Memory Preview @ 3dGameMan

Gold GX @ CaseModGod.com

3200DSU2-1GBFX (DDR400) @ Legion Hardware

PC-3200 Gold GX XTC Dual Channel @ Pro-Clockers