My two cents: I'd get both. The A3000 is my personal favorite, due to it's design and since the A4000 is really a believe it or not scaled down A3000 w/ AGA. A3000s seem to go for about half the price of an A4000. Trouble with the A3000 is you have to find rare/pricey zip ram chips for m/b ram, you probably need to replace SuperBuster to rare/pricey Rev.11 to use Z3 properly (note: you may need to do the same for an A4000), and you need to do the int2 hack to use an accelerator with on-board scsi or the CyberstormPPC. The best games have rtg support so a graphics card in an A3000 makes it way better than AGA anyway. But there are a lot of AGA-only games and demos that make an A4000 desireable (or a cheaper second-hand A1200). Plus, that internal ide port makes a nice interface for a cheap fast ide cdrom (which you can connect the audio output from to the m/b). Put a PicassoIV in the A4000 and it tips the scales in its favor over a similarly outfitted A3000 with a lesser graphics card. But those babies are very $$$.
