Perhaps you could be more explicit with us.............. You say very little money and space. Could you be more exact? How much, or little, $$$ and space are we talking about?
For example, drill presses are dandy things but I wouldn't want to have one in my bedroom so if you don't have a space where you don't mind metal chips flying around the room I'd be thinking hard before springing for any toolsl. That makes me think about portability and I'd say you might be looking at a 1/2" electric hand drill. These can be had very cheaply and there are a myriad of accessories including holders that will turn it into a drill press! You can use one to drill holes, polish, cut (very carefully with an abrasive cut off wheel ), the list could go on for days............... Of course those accessories cost too. I'd be checking out Craig'sList, eBay, garage/estate sales, auctions etc for tools on the cheap myself. Once you start acquiring tools you'll never stop, take it from me. As your collection grows you'll need to store them and maintain them. You 'll want a workbench and a vise soon too. I could go on but you get the idea...................
You could practice on wood to start too to get a feel for the way it works. The 6H pencil that Ron Lake mentions in his book on folding knives, along with a good 6" steel rule and some graph paper couldn't hurt either. Then there's the library where you might be able to check out some books to dig into. Those don't take much space and costs nothing........... The $50 Knife Shop by Wayne Goddard might be the best place to start now that I think of it.
Tell us more and you might get some surprises
Good luck regardless
Syn