I think you guys are getting a little confused with the DDR3 memory. you can buy ddr3 ram in duel channel and tri-channel. your core i7 monitor will be able to use both. the difference is with duel channel you are buying 2 sticks of memory compared to 3 sticks w/ the tri channel. of course 3 sticks is going to be more than 2 sticks. at this time there is little performance loss between duel and tri channel memory. this is new tech. and the software is not optimized to use tri-channel memory. check the prices

6gb of tri-channel ram is less than $200 and i have seen it for under $150 on newegg.