what photoshop to buy??

I use the cs2 suite, its great.

I also have an older version of elements, which I still use pretty often. The batch feature in elements is easier to figure out than cs2.

You should be able to snag a copy on ebay for cheap, or you can go the pirate route I suppose.

I got a legal copy from my work, and that way I’m entitled to the extras on the adobe site, and the updates.