Exactly Matt - those and the back of a scalpel blade or the flat side of a pair of tweezers. As I mentioned, my 'need' for them is extremely rare, but they might be handy to have I suppose, although I doubt I'll ever bother getting any.
Harrison, don't get too hung up on thinking you need lots of tools - as Matt has already mentioned, get used to doing the basics and building skills - tools can be bought as and when you might neeed them, and you'll be surprised how liitle you actually do need, unless you're going in for the Master Surgeon classes from Wojtek!!
Many people think they must have the latest all singing all dancing gizmo to become a good modeller, airbrushes and compressors being a prime example. Wrong! It's skill, practice and experience which go together to make a good modeller, artist, photographer or whatever - the tools are just something that assist the process. Airbrushes, for example, are not a neccessity, they are a luxury, and quite often unneccessary at that. Before anyone buys an airbrush, they should learn about paints, brushes, thinners etc, and how they work, and practice with these first - it's amazing what can be done with a stick with bits of hair on the end, and they've been around for thousands of years, turning out some exceptionally brilliant artwork.
Bottom line is, don't think you have to rush out and buy a whole hardware store to do modelling! A good scalpel, tweezers, rags and some brushes are all that are needed most of the time!