Hi mbg19chevo02
You can find them if you google hard enough (I did).
Considering I have/still own SONY PS1, PS2, 2 x PSP's, MD deck & MD walkman, about 4 TV's, 2/3 HiFi's, 2 VCR's, 2 DVD players, 1 x DVD/VCR combi, 1 DVD Recorder, 1 DVD/HD recorder, W810i & 7230 mobile phones I think I was entitled to download the PS2 bios which is only of use to the PSX2 emulator which doesn't really do much at the moment anyway.
Don't quote me on it, but I think it's only illegal if you don't own a PS2. I know this applies to ROM's.