need your help! forgive my ignorance of proper terminology as i phrase my questions.

i want to get a portable playstation as a gift for my husband.
now i understand that in standard (non portable) models one can have it modified to accept games that are less than official (cheaper). does this option apply to the portable jobs too?
and supposing i want everything on the up n up, no hassles, where should i go to buy the portable playstation and games? are prices standardized or is there a chance that one dealer has a better offer than another?
thanks guys.
