Ram is the 40 MB that was already inside it when I got it. I can't remember exactly how long it is to boot and I can't check as I'm not at home at the moment, but it's certainly not quick - over a minute definitely. SheepShaver boots OS 9 a lot faster on my PC than the 6100 does.
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Main system: custom C2D 2.66GHz tower/4GB RAM/2600XT 512 MB/500GB HD/XP Pro x86+Vista Business x64
Main Mac: Beige G3 minitower (Sonnet G4 500MHz/640 MB DVD/USB/Radeon 32 MB/OS 9.2.2+10.4.11)