ps2 mod chips and mod chip stores

anyone have any recommendations for a ps2 mod chip as well as a retailer [online more likely] that sells mod chips?a used ps2 is modestly priced now and i can start modding them. i've been search around google and it seems that the modbo 4 is the typical chip to go for but i like to see what are my other options. please post your comments and opinions on what you have and recommendations and places you know that they sell them.thanks in advance!

I use the memor32 with memento firmware (seems that its no longer updated, but there are alternative firmwares that are more compatible, I just haven't got around to trying them yet).

Replying to #2

what is your compatability percentage, 90%, 80%,....?

50% but I've only tried 2 games so that's not really an accurate assessment Dark Cloud (the reason I got the card in the first place) works, but Final Fantasy Dirge of Cerberus does not. It also appears that the memento firmware does not bypass region locks. I need to get around to trying out the other firmwares though.

My buddy bought a Matrix chip and that one bypasses region lock 100%

i've got an alternative.swap magic, cheep easy works perfectly.