The Mushkin Redline HP3200 modules were astonishing because of its super overclocking ability where it can do 250MHz at 1.5-2-2 timing with 3.5VDIMM, which is on par with the Redline XP4000 series. The Mushkin 1GB Redline HP3200 only costs about USD157, which is USD30 cheaper than the Redline XP3500 (USD89) and USD60 cheaper than the Redline XP4000 (USD213). If you have limited budget, you can get the Mushkin Redline HP3200 and overclock it to DDR500 or more if you are lucky. Besides that for those don't have DFI nF4 series motherboard, the Redline HP3200 will serve you well because it does not need high VDIMM to achieve lower latencies.