Playstation one mod chip

Anybody know a good seller for a mod chip for an Original PS1 ?

I've taken mine down from the attic and cleaned it up.
It works perfectly and it's a nice collection of bits and bobs:
PS1
2 X Controllers
1 X G-Gon Gun
1 X Scorpion Gun
1 X Arcade Stick
1 X Memory Card

and about 9 or 10 games including point blank 1 and 2

I really like the point blank games, but only have a 14" CRT so I'm thinking I might mod it and try out some games.

I never really loved the PS1, so it's worth trying some of the recommended games for it I reckon

That or I may just sell it, but I doubt it's worth that much, especially since casual gamers will have got the mini and you need a CRT for the Gun games.....


Anyhow - so back to my original question - anybody know a good supplier ? Or is there a particular chip I should be looking for ??