Totally agree with Keropi
An A500 blows...to costy to upgrade with a harddrive, fast ram etc and you can't play any AGA games on it.
Imho the ultimate gaming machine is an A4000 with a Cybervision 64 gfx card, flickerfixer/scandoubler and a network card so you both can have nice resolution and pass thru for the native screenmodes.
And you can d/l games directly thru your amiga since you can connect to the internet..but this is not the cheapest solution but the price isn't too hefty