Since you mention your main concern to be ram, the IIci is the better machine. It tops out at 128mb (8 x 16mb), vs the IIsi max of 17mb (4 x 4mb + 1mb on mobo), so if RAM really matters to you... the decision is clear. But for a quick run down: The IIci is going to be the better unit. It has 8 ram slots, and handles 16mb chips (IIsi has 4 slots, 4mb chip max). It also has 3 NuBus slots, along with built in video (so 3 usable slots... although you will probably fill one with an ethernet card). And it has 2 ADB ports (although for the most part, you will only ever need one, since the mouse will daisychain thru the keyboard, and you can always get an ADB splitter if you need an extra with the IIsi). Oh, and the IIci is 5Mhz faster (25 vs 20 for the IIsi), and all IIci units have the FPU (IIsi it was optional, and most did NOT have it, but many right angle adaptors had it installed). The IIsi is only better in my book in two repsects. 1: it is slightly smaller, 2: the single slot is a combo NuBus/PDS slot, so you have an option of what to add (but in my experience, most cards that were PDS were also available as NuBus... but NOT the other way around, there are a number of video boards that were NuBus only). Oh yeah... the IIsi has a mic port, the IIci does not. So if you don't need the PDS slot, and don't care about shaving a few inches off the height, and don't need a microphone... the IIci is the far better machine. -chris <http://www.mythtech.net>