Apple acquiring SGI would be almost as nonsensical as HP acquiring Compaq. Buying SGI outright would not help Apple in the least bit. SGI is a very specialized company with a market share that is likely (I don't really know) a fraction of a percent of the entire computer market. SGI is good for making cool movies like Jurassic Park and Star Wars. Their computers are used in engineering and science as well, both their mainframes and workstations. Apple would gain nothing (monetarily) from purchasing SGI.
2.0 GHz Intel Core2Duo, 4 GB RAM, LaCie BigDisk Extreme 500 GB HD, External Pioneer A109 DVD superdrive, External LiteOnLiter CD burner, iSight video camera, 5th generation 60 GB video iPod, 4th generation 40 GB iPod, 1st Generation iPod Touch, Philips 32" HDTV with HDMI input, KDS Radius 19" LCD Display, Mac OS X 10.6.7.