Fuck vista print, that stuff sucks. It looks really un professional to someone that knows anything about printing. I would check out that link above, if they are better quality at all, it will be appreciated by people.
a lot as in 500? or 5000? It's a good idea to order quite a few, and network the FUCK out of yourself. It will get you business like no other if you learn to sell yourself and your work.
Remember to get a matte print and not glossy, as the matte will be able to have a pen write on it (lets you or the receiver jot down notes if needed!). Get them one sided, something simple but something that stands apart from the rest. Remember, your contact info is most vital, so make sure it's visible!