Software recommendation requested

I'm looking for some software that allows me to take handheld shots of the same scene with different exposures, alight them, merge them (with user adjustable settings), and, of course, crop. It would be great if it doubled as a panomaker.

I don't own PhotoShop, but I do run a PhotoShop-like program (PhotoLine 32), and it accepts plug-ins. So, I don't know if PS plugins will work or not. Truth be told, I'd prefer a stand alone application.

Thanks in advance for any suggestions that don't involve tripods (yes, I really am that lazy).