CollegeHillsHonda has everything you need in their Si front and rear sway bar kits.
For my 09 EX sedan, I ordered an Si RSB for around $80 shipped and all the brackets and bolts were included.
All you need to bring is a socket kit with a couple extension pieces, some lithium grease for the new fat rubber bushings, and some elbow grease. Oh, and maybe some WD-40. And definitely a jackstand kit.
I happened to have 2 metal ramps and I backed up onto them (with a friend to guide me of course--careful!), and then I used my 2 jackstands in front of the rear wheels as backup, then I blocked the front wheels in front of them and in back of them with some wood. I didn't actually use my floor jack (you know, the hydraulic pump jack with the lever).
A few screws will require some realllllly hard turning to get loose (the endlink screws if I recall, but you'll figure it all out. And for some reason the new RSB doesn't seem to line up, just flip it around. The first time around, it was bumping into my muffler and then realized that it was turned around the wrong way. Start in the morning while there's lots of light and give yourself plenty of time and you'll piece things together like a champ.
