I have a mid-2007 2.4ghz iMac. From the videos on YouTube, it looks super-simple to upgrade to a new 256 gig SSD harddrive. Benchmarks put the 256 gig Samsung 840 Pro much faster than the Angelbird in some ways, but in other ways, the Angelbird is faster. However, the new Angelbird WRK has found a way to make a Mac use Native Trim without having to do any "hacks." With the Samsung 840 Pro, I'd have to do that command line thingy (discussed here http://forums.macrumors.com/showthread.php?t=1471748) and with software updates, etc., it can be lost or overwritten, etc. Which would you guys do? Samsung 840 Pro? Or the new Angelbird? Thank you!! p.s. to give credit where credit is due, here's the Angelbird link: http://www.bhphotovideo.com/c/product/1076566-REG/angelbird_ssdwrk256_256gb_2_5_7mm_ssd.html And here's the Samsung link: http://www.bhphotovideo.com/c/product/1076566-REG/angelbird_ssdwrk256_256gb_2_5_7mm_ssd.html OMG -- while finding those links, I just now noticed that Samsung has an 850 Pro! That's gotta be even faster/better than the 840.... Okay what do I do?