Abit NFT-S running dual ddr question plz respond

hey guys i got a questionfor ya... i wanna buy the abit nft-s (Already got the asus n-force 2 board... and wanna see how this compares to that)... i also got a stick of 128mb of kingston pc2100 ddr out at my house... but let's say i want to use the dual channel ddr function... my question is if i use 128mb pc2100 of another company (say samsung) will it still work? or do i need to buy another stick of the kingston i am using???

Ideally you want them the same even if it's just to rule out the problem of pairing different modules but then again that's no reason not to try.