I just look at the review and both the f30 and f31are now two years old as the f40 and f50 are about 1 year or less and cost less than the f30 or f31 and both are higher resolution also. If you can afford the 200 dollars just get the 12mega pixel f50 other wise the 8 mega pixel f40 will do at about 150 dollars.

Link:http://www.dpreview.com/reviews/specs/Fujifilm/