Hi everyone, I have wanted a Mac Pro for a very long time and recently 3 models have popped up on the local craigslist. My main purpose is to use it as a media hub, server and doing some video editing. I'll also be using it to backup my extensive dvd collection so the optical drive and 4 storage bays are very appealing. It will be under a fair bit of load using handbrake to make backups of my dvds. Here are the specs (excluding hdds because i have several that i'll add) Mac Pro 1,1 (Quad) 2x2.66 dual core 4 gb of ram ATI X1900 $300 The tinkering side of me likes the idea of picking up a couple of 3 Ghz quads, turning it into an 8 core, and adding local sourced ram for ~$250 all in. Limited to Lion Mac Pro 3,1 (Octo) 2x2.8 quad 12 gb of ram ATI 2600 XT & ATI 5770 $750 I feel like there's limited options for upgrades here other than ram Mac Pro 5,1 (hex) 1x3.33 hex 32 gb of ram ATI 5870 $1900 I believe it's a 5,1 but could be a 4,1. Hex's seem to rip through handbrake encodes. The guy is including 4x2TB hdds in I'm not saying money isn't a concern but the 5,1 is an option. USB3 and thunderbolt aside i would like some longevity so 1,1 is sort of out even though i love the idea of tinkering with it. The 3,1 seems the most reasonable price wise but the 5,1 hex's seem to dominate a lot of the benchmarks. Now I do have a 2.0 quad i7 Mac Mini but I just don't find the mini handling the handbrake load very well let alone multitasking. Any thoughts that would help me make up my mind? Thanks!