Here are some pics of mine:
It's definitely something you can do yourself. Just make sure you spend the extra money for a good kit. The G2 kit is really good. You can find it for like $40-$45... I even saw a guy in the For Sale forum with that kit in red and the Lexus decals together for like $50.
http://my.is/forums/f99/g2-gloss-red...2/#post4923803
That kit comes with everything you need to clean the brakes and apply the paint. Why is that kit so good? There is a chemical additive that you mix in with the paint that causes it to harden into a ridiculously strong shell. This is important because you don't want that stuff to peel off and chip like some of the cheaper kits I've tried in the past (ie Duplicolor). You can pretty much even bang that stuff with a wrench and it will stay on.
A couple of tips I'd give to you:
1) Pick up a smaller super fine paint brush before you start. The kit comes with one but it's kinda bulky and doesn't fit into the smaller areas very well. It would be easiest to paint the calipers if you took them off the car, but I'm way too lazy for that and you can get the same look without the extra trouble.
2) Paint your hubs too. It looks way better that way IMO. You don't want to have nice shiny painted calipers and rusty looking hubs peeking through your wheels.
3) Make sure you clean off the brakes very well. Use that entire can of brake cleaner if you need to, and get a small wire brush to remove any excess rust. That rust won't let your paint bond very well.
4) The kit recommends you mask off certain parts of the brakes, but it's really not necessary. Just be careful around anything that is shiny metal or that looks like a screw.
5) Wear clothes you don't care about. I can't see that stuff coming out if you get it on you. It takes like two weeks just to get it off of your hands / out of your fingernails.
6) This kind of goes without saying, but make sure you have jackstands or a lift to keep your car up on and make sure you have another means of transportation for at least 24 hours. That's about how long it takes them to cure fully.
7)*OPTIONAL* Have someone else help you. It goes so much faster and if you start on opposite sides of the car, by the time each of you gets around the wheel is ready for a reapplication (you want to do like 2-3 coats).
Hope that helps! I've used that kit on 3 cars, including my Lexus, with great success. Go git em!