Thanks for the answers. I'll probably upgrade the RAM to 16MB because why the heck not?
I'll also keep an eye out for a real spare 3000 disk drive since I really don't need a second one with WHDload gaming (it was more useful on my 2000 when I did disk based games). Sounds like I can order a replacement button and fix that if the tape doesn't work (http://www.shapeways.com/product/Z3R...e-eject-button
Yeah A3000 and A4000 prices have really gone up lately. The odd thing is that 3000's seem to be more in demand than the 4000's (although 4000's still go for more). Personally I always thought the 4000's were kind of ugly (they look like a hobbyist DIY generic PC case), but unless you can get your hands on a 4000T they're the only big box AGA system.