Summary -- 16GB of RAM is probably OK. 2x CPU performance would be nice. Not sure how the new graphics compare. Doubt I need the performance afforded by the 2013 Mac Pro. Switching to iMac means scrapping one of my existing 3 monitors. -- I didn't see an "All desktops" forum. Hoping this is the best-fit. My old / original Mac Pro 1,1 has been humming along great since I purchased it new in 2006. Upgraded to 2x OWC 256GB SSD's, Mountain Lion, 16GB RAM, ATI Radeon HD 5770. CPU speed isn't terrible, but I do sometimes notice all 4x cores are pegged in iTunes or iPhoto. It "feels" a little CPU-bound. I always run an instance of Windows 7 in Parallels Desktop 8. I occasionally run additional VM's for a specific task and immediately shut them down when not actively being used. 16GB of RAM has been working pretty well for me. With 17-days of uptime, it shows 798.8MB swap used and 662.4MB Page Outs. Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 125567. Pages active: 1014430. Pages inactive: 1135235. Pages speculative: 348480. Pages wired down: 1570079. "Translation faults": 2273053964. Pages copy-on-write: 55028679. Pages zero filled: 1746466089. Pages reactivated: 582976. Pageins: 4514338. Pageouts: 169582. Object cache: 446 hits of 15433337 lookups (0% hit rate) I noticed a HUGE boost in video performance both for MacOS X & Windows 7 when I installed the HD5770. Everything seemed faster. I'm pretty much hooked on having 3 monitors now (HP LA1905wg in portrait, Apple mini-displayport Cinema? Display, HP LA2405wg). I'm a little leery of being limited to 16GB in the 2012 Mac Mini, but it's not terrible. CPU would be more than 2x faster on the new Mac Mini. Any idea how the Intel HD4000 video compares to this old HD5770? I'm not a gamer and I don't do anything particularly graphics-intensive but I don't want something slower than what I already have either. My other options are to just wait for the new 27" iMac that supports 32GB of RAM and even faster CPU in December, or keep holding out for the new Mac Pro in 2013.