Soldering
You can go to sim lim tower and look around. It cost about 12-15 bucks for a 'Goot' brand soldering iron. From Japan if i remember correctly. I prefer the pencil kind to the gun shaped ones.
Get a 40w iron so that you can solder the wire to the back of the pots. Smaller wattage and it wont heat the pot fast enough for you to solder effectively.
Also get some flux (soldering paste-that waxy kinda thing in a small round tin) to make the soldering smoother as it flow better onto the part. Thin (the process of applying solder to the individual parts before soldering them together) all the parts first, including the pot.
Like ratboy mentioned, get some desoldering wick.
Get a soldering stand with the sponge.
You might also want to get some kind of movable arm thing to hold things in place while you solder. I improvise and use some masking tape but an arm-like device would work. They sell that kind of thing with two arms and a magnifying glass in the centre (havn't used before though, arm looks kinda short).
Have a lamp around for better visibility. Again, those arm kind will be good.
Wear eye protection. Sometimes accidents happen. Like maybe the wire wasnt held in place properly and it spring off throwing some solder in your face.
A tip on soldering. Heat the part you want to solder and apply solder on the heated part. Some make the mistake of heating the solder and trying to wipe or drip the melted solder onto the part.
Use some spare wire and practice soldering to the back of a spoilt pot first. Thats the limiting factor for beginners. Its pretty easy once you get the hang of it.
Soon you'll graduate to doing other things. When you start to do amps, call me. I'll get you to build one!