I have an Amiga as well. I basically made an Amiga 1200 tower with accelerator card and a hard-drive which I use to play Amiga games.
I still think Speedball 2 is fantastic. Yes things have moved on now, however I find some of the older games where gameplay was more important than graphics somewhat better than current games. Every game now, nigh on, is an FPS game - Crysis, UT3, CoD4, etc, etc, etc. in them days every genre was covered. Speedball 2, SWoS, Gods, Kick Off 2, etc. are still highly playable and some of the best two player games you will ever play.
If you want to play more rehashed FPS's then that's fine. Just think of how good the gaming industry could be if people were as inovative as they were thenn. Nowadays every publisher is trying to get the best looking game out there where the very substance of the game is the hardest thing to find.
M.