I've dropped my tank twice now, and it's really not too bad. The first was because the fuel filter died, and the second was because the tank rusted through. Just when you drop the tank, FOR THE LOVE OF EVERYTHING HOLY buy new bolts and use them.
You just break all the 8 bolts loose or break them off, they aren't really high grade if I remember correctly, and then the only real PITA part is disconnecting those connectors on the top of the tank. If you haven't done them before, please make sure you have the right tool first, the connectors are two different sizes! Then you should be alright, but it still may take about 10-15 minutes if you haven't done it before. Then disconnect the breather tube (just pulls off) and disconnect the filler neck (you can use a tiny 1/4" ratchet and get to it from the driver side rear wheel well pretty easily.) Then use your floor jack to lower it, and the little ring just comes right off with a hammer and a brass punch. Lift out, replace, put tank back.
Don't forget to connect the filler neck before you bolt the tank back up, or you'll be :banghead for sure. As long as you use new bolts (stainless or something) you won't have any issues getting that tank down in the future, and it's really not too huge a deal. Takes a few hours. Oh, and run that tank as dry as possible beforehand! Gas tastes AWFUL if you have to siphon out about 25 gallons when your fuel pump goes up :brownbag
good luck!
:beer
Tony