Jesse's set up is what I used to fly all the time. Worked well but I hated the suspenders so I switched to a bungie tether around the back of my neck. The small dynema slings can be used for other things as well and you probably already own the carabiners. If I recall, I emailed pics of my setup to someone on the buzz but I forget who (BostonBull?). I can retake the pics tomorrow and text them to you if you'd like (just pm me your cell phone number. WARNING! I am not responsible for drunkin text messages or other vulgar pictures sent afterward!)
I've used the petzl saddle, hell, I've owned almost all of the new saddles (except the treeautria). treemotion wins hands down in my opinion. Don't let the independent srt attachment point sway you from such a fantastic saddle, that's how I got tricked into a treeflex.
I now use only my uni and a pantin for srt, hand over hand style. It's crazy fast (I've gone 50ft in 20 seconds with a little effort) and I can work off of it without having to saftey in and switch to a descent mode. The uni is awesome.
Also, with a little practice, footlock srt isn't that bad. I use it with a double hand ascender when the line is away from the trunk of the tree (I'll never understand how someone can footlock with the line going right against the trunk, I'm just not that good at it I guess)