so my 15" macbook pro finally arrived today. i got the quad core 2.4 i7 option, with a 128gb SSD and the hi res anti glare screen. i also slapped 8gb of ram in er today as well. btw i got the toshiba ssd, which supposedly has a slight bit slower read/write benches but no big real world difference. i also read some people reporting problems with beach balling on the samsung and iv always liked toshiba so its not a big concern for me. i went with an apple ssd just for reliability and ease really, plus the price wasn't bad. now i already have the 'optibay' enclosure to put in place of my super drive, so my question stands, should i get a 7200 rpm hdd or a 5400 in combo with my SSD? battery life does matter to me, as does speed. with the newer drives heat/noise is not as much of a concern. but will i notice the speed increase from a 7200 as my music/photo/sample/etc drive, or should i just get the 5400 rpm? also how are people making out with the HDD in the optibay? id rather keep it there to avoid sleep issues and such.