Breaker Pro V1.1 works fine for imports (and 'backups') on PSone and PStwo. It comes with a slide card for yanking open your PS2 drive and also a lid spring for PS1 and a sticky thingy to do the lid switch on a PSone. Comes in PAL and NTSC flavours too, depending on where you are in the world. And it's about a tenner.
