You may prefer to put your cards on another host--most likely your own. Especially if they are on the same domain as your trade post and you already have most of the decks (shorter urls, but won't take forever). We don't mind. In fact, we'd like to help! This page includes a download helper as well as some Personalizable extras for you to use.
The Download Helper is a great item for those with the DownThemAll! Firefox add-on. You just fill out the form for a deck and you'll be taken to a page with only the cards you need. If filled out correctly (and no error on our part), there will be a deck with no broken links, so you can tell dTa where to put them and not deal with any settings. After the first deck, you can use dTa One Click for the rest, even!
Directions: Just enter the deck name (without 0, promo_, etc.) Check only the sections you want to download (promo, base, etc)--hover over to see what each check means.