You should get yourself a used PS2 or something, they're getting cheaper......or maybe even wait if need be, until the PS3 comes out, the price should drop some more! Orrrrrrr, you can wait until there's a reliable PS2 emulator I suppose.
Who are you talking to? Did anybody mention not owning a PS2 here?
Anyway, in order to play imports, I recomment HDAdvance. The new version 3.0 even supports DVD-9 (dual layer) discs!
i think he is talking to me, because i mentioned on the first page not having a PS-2 anymore.
Well, in order to use HDAdvance, you'll need a HDD. You don't need the official PS2 hard drive, you can use almost any drive (80, 120, 160 or 200 GB only). Samsung and Seagate seems to be the best drives. Western Digital will not work.
Most games are compatible with HDAdvance 3.0. You can check a fairly complete list on www.ps2hd.com. I myself am using HDAdvance and Ys III, YsIV and YsVI runs flawless on them. Not only does it allow you to play imports, it also allows you to backup your precious games, and the loading times will be reduced to almost 50%!
And of course, it lets you download PS2 games and play them illegaly. But that is.... well, illegal. It's up to you whether or not to do that. I don't do that, myself.
Edit: It will only work on PS2 models 2-11. You can only use IDE drives (ATA-100 or ATA-133). The new slim PS2 will need either a case extension, which requires soldering, or you can use USB Advance, which uses external USB hard drives instead.