Hi All! I'm planning on getting some upgrades for my MP 1,1 in preparation for upgrade to Mavericks but Im still unsure of two things regarding compatibilities and such. I've been searching for some time now and keep getting mixed answers/reviews. I've already done an SSD upgrade and additional ram have been ordered... Only things left are: 1st, the cpu. Originally I was set on a pair of X5355 quads, but was curious if this efi 64 bootloader fix (homebrew bootloader for OS X 10.9)may allow a pair of X5460 to work instead? Or am I still a bit confused about the 32 / 64 bit efi thing? EDIT: Stumbled upon this thread which pretty much gave me my answer. x5355s it is! 2nd, the video card. I was wondering what my options may be for this? Ideally looking for one that can support quad 22" monitors and have 1 or more gb of ram? My budget being the main factor on this one, it would have to be under $200. PC cards would be considered as well since the popular ones should work with 10.9. (unless I'm wrong on this as well.. ) I mostly use this machine for photo/video editing and livestreaming of gaming sessions from consoles. (using photoshop, imovies, eyetv, etc..) Any help/recommendations would be greatly appreciated! Thanks!