Well, if you have to stick with Tiger for your parts (I'm not complaining because I use my Coporate with them all the time).
Go with:
Corsair XMS3 Tri Channel 3GB PC12800 DDR3 Memory - 1600MHz, 3072MB (3 x 1024MB) TR3X3G1600C9 in Canada at TigerDirect.ca
otherwise, there is a good amount of people here who swear by the Mushkin Memory Available elsewhere.
The choice is yours.
For LC setup, I can't help, I don't have enough experience. I had to come here to get help myself on it.
but I am sure there are people who can more than explain how to do an LC setup if thats what you want!
Regards,
ST