I'd just start with a kit if I were you, that's what I did. Then just pick up whatever wax you'd like to try, just DON'T buy rub on wax (that paste crap). As far as an iron goes, I went to a thrift store and got one for $3. Try to get one that is completely flat on the bottom. Here's a link for one of those kits.
Demon Snow Pro Mechanic Tune Kit from Dogfunk.com