OWC sells 128MB DIMMs for under 30$ now. Ramjet still gouges, but there are a couple places like OWC charging REAL VALUE prices. I picked up 2 128s awhile back for 35$ a pop there, now the prices are even lower.
OWC is actually a nice place to get a bunch of things. I can get a decent Firewire (only 5400RPM, but sustained 25MB/sec transfer, fast enough for me) 60GB drive from them at a little over 200$.
They do produce their own 'brand', but that brand is top-notch. They sell it cheaper, as the higher profit margins on the other products that they sell, but don't produce can either help cover the cost, or heck, they just might be able to produce those suckers cheaper by shopping around for the parts.
Additional: Yeah, my 8600 is pretty useful, but without a CPU upgrade, it is nearing end-of-life pretty quickly. Diablo 2 is a tad slow for me, CVGS runs RPGs nicely, but not anything true realtime 3D... Terminus runs nicely. I could probably pull off Summoner no problem with a few dropped frames. But, I need something a little more powerful for my video editing. I am thinking a Dazzle A<->D Firewire bridge, and a TiBook 550. This 8600 is still good for amateur video editing and runs 10.1 fairly well, but it is still getting to its last legs for me. Considering the TiBook is now combo, it makes it cheaper on me (I spend an extra 100$ for the 550 model instead of 200$ for an external) and makes the idea of getting an external 60GB Firewire drive even more tempting.