Newbie

[Lonster]

Hey everyone, I've been researching starting a saltwater tank for a few months now and I'm finally ready to start buying hardware and putting things together. I have a few questions I would like to ask that I have no idea about.

I am looking at doing a 90 gallon tank (there is a perfect spot in my kitchen that will fit a 4 footer really nicely). I know this is an expensive hobby and will probably start with a mix of used and new equipment to help keep my startup costs low. I'm ok with spending money for quality stuff, but the more $$$ the longer I'm going to have to save up.

I've been looking around some of the places in town and I am considering going with a used tank that is in good condition if I can. The first question I have is if I get a tank that is not drilled or have overflows, how difficult and how expensive is it to get this done?

Thanks,

Lonster