YEp, sorry, forgot!
Well, there are some really cool resources at
http://www.mailartisans.org
including information about wire, techniques, patterns and all sorts of stuff. I suggset you start with European four-in-one, and for your first suit, use larger rings since it's easier. The rings I used on my suit are larger then would be found on real chainmail, but that kinda works for me, since it was just my first suit.

They also cut down the weight of the suit, but of course, the smaller rings you use the better the 'look'. I'd also recommend:
http://kendaco.telebyte.net/rlindber/sca/chainmail.html
for some neat ways to do it, such as suspending it on a coathanger. I personally found that a bit cumbersome, but a few guys I talked to swore by it so yeah.. It's up to you I guess.
I'd recommend using the '45 degree sleeve pattern' to start with, as it's ment to be easier and provides a good look for a sleeved tunic. I didn't use it for my piece, rather, the whole thing was made as one piece; that got terribly complicated around the armpits and stuff, so... a uniform pattern would be best IMHO.
