I'm going with the BAT kit myself, though I have been waiting for it to come in now for over a month. Arghhh. At 110K miles, I'd say I'm pretty much overdue. Heck, I'd take the springs from a Chevette at this point and it would be an improvement. I'm also doing the bushings while I'm at it. Hopefully the kit comes in this week. I have mine on order with Joe at SP Motorsports.
I'm not very mechanically inclined myself (never do for yourself what you can pay someone to do for you). My mechanic is going to do an alignment after the install, and then check it out a month later after the suspension settles in. Just something to keep in mind, because the car will drop over the first month.
Good luck.