Newegg.com - Mushkin Enhanced 2GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory Model 991558 Had 2 of these in my old pc
Dont think the CAS latency will mess with anything but not 100% sure
I dont think the price will go down anymore on ddr2 ram... atleast not till its so outdated that nobody wants it at all.