I got my SGI Octane2 few weeks ago. I also had to order 13W3 to VGA-adapter to get picture to my monitor. I've been very happy about the performance of the system and IRIX seems to be a crown jewel of UNIX. SGI really proves megahertz isn't everything when it comes to performance. Example IRIX's proprietary Xserver "Xsgi" really screams, i've never seen such performance on ANY X11-based systems. Back to the megahertz myth, though. It doesn't matter if your CPU is running at 3000MHz if everything below it is crap (and the CPU-architecture is crap). Crossbar-architecture fells MUCH more responsible when my system is under heavy load. IRIX is also designed for these purposes and feels very mature. Present IRIX version (6.5) is running on it's 23th patch release now, you can even select between maintenance and "less" stable feature releases.