But but photobucket looks horrific
Seriously each time I visit the site the interface is clunky and it seems to have more ads each time.
Personally I don't think it holds a very professional look for a photographer to use a photobucket page for proofs. Flickr at least gives you a more professional display, though you can't section things off with passwords so easily. Smugmug (for those in the US) and other similar companies would be far superior for proof showing online and also providing your clients with a purchasing option right there on the site.
If you are just showing proofs and then doing the purchasing later in person do the proof showing at the time with a laptop or computer and make your sales pitch