dual channel vs. non dual channel

I am thinkning about buying new ram for my computer right now i have Kingston ValueRam 512 ddr 400 pc 3200...I am thinking of which type of ram i should get...I could get the samsung which is normal pc 3200 (not dual channel) for about 100 CDN or i could go for something that is dual channel and spend around 70 dollars more....I was wondering if I should bother with the dual channel stuff...I am not sure if I am going to overclock yet....

Thanks

PS: the rest of my system specs should be in sig

from what i understand dual channel gives you a little more performance not very much tho so it really isnt that important

Dual channel isnt as important on an athlon xp setup as it is on an intel one.