Stezo2k: Your answer doesn't make much sense. A scart lead (never heard of Scart lead before, but I guess that's the name or a normal Scart plug/cable?) will not change anything at all, as all it does is provide the signal as it is. A 60Hz image will NOT be converted to 50Hz using Scart. Besides, NTSC doesn't have same resolution as PAL. You could use S-video or even RF, and the results would be the same.
You do get NTSC -> PAL converters, but they are a tad expensive I believe. Do you use a PAL or NTSC PS2? I don't know how PS2's video work, but both GC and XBOX can play NTSC games in PAL50 and PAL60 (if you have a PAL GC/XBOX that is). Would be weird if PS2 couldn't do such a thing too...
Also, are you sure your PC can only accept PAL signal? Check in the manual to see if you can switch to NTSC playback.
Last, moved the thread to TechTalk as it's more suited there...