I was thinking of trying by my self those ps2 emulator you mentioned in this forum... but when I read the limitations of roms It let me down... Could you tell me if there is any good game which worth the effort to try on ps2 for mame? Any chance to play some street fighter 2... SFA 1-3 ?... some macross shooting game?... even final fight? oh! and nostradamus too! plus carrier airwing!

mame on ps2 is stuck at version 0.37 or there abouts and roms like sfa1-3 just wont work.
this link will give you an idea of the kind of roms that play.
http://uk.youtube.com/watch?v=sAvTFVmVcD0
if you have a dreamcast or psp then you could try mame4all its at version 0.61 i think and plays cps1 roms like final fight,area88.......and also tmnt and the turtles.
heres a compatibility list for mame4all on the dreamcast if you are interested.
http://chui.dcemu.co.uk/mame4all.html

I dont have a dreamcast... though... I should consider to get one .... back to ps2 mame... then shall I wait for new versions ? .... I hope they are releasing a cool version for ps2 and play all those cool games !

The psp mame4all seems to run laggy for most games i tried but just the fact that i have arcade games on my psp is awesome ...props to all involved in making this happen.