Ive been a retro collector for a few years now (should have started earlier!) my almost complete collection can be seen at my website - WWW.RETROBRAD.COM just click on 'My Collection' ive got alot of double up / triple ups of games and consoles, especially the really common titles like super mario bros 1 (36 copies) the ninja approx 40 copies, super tennis approx 25 copies, and as far as systems go ive got on average 10 - 15 of each system i.e snes, nes, megadrive, master system, gameboy, lynx, game gear etc...
i'm good mates with ***Astroboy*** and used to go to garage sales with him when i lived up in newcastle, hes always got loads of retro games for sale on ebay so check his auctions out.
all up my cartridge collection (for all systems) is well over 1,000 carts. i have approx 3,000 - 4,000 amiga disks and boxes full of controllers! one of my best recent finds was a boxed Vermin game and watch which i got for $2 from an op-shop. on ebay these sell from around $200 - $400.
If anyone is interested in swapping, you can check out my collection and then contact me, im also right into retro modding too.
and lastly, my mates and i are looking at having an annual retro games convention in either melbourne or canberra. we just need to see if anyone would actually be interested in going??????