Go for G.Skill LE series if you can get it from PC-memory.co.uk
Or go for the LA series from cpucity.com, they have the DDR600/PC4800 variety.
I tell ya, I am in half a mind to stock up on this ram, it rocks and until that came out people have been scraping around for the high voltage variety BH series - this stuff rockes on normal volts.
Curses to Samsung for this act of bullying, A64 users do not need DDR2, we are happy with what we have, rumour has it that next generation A64's will be DDR3 ready - but were 6-8 months away from teh chips being available.
I think I am going to cry
But then there's always room for OCZ VX series