I did mine last week. I had NO help though so it took me a little longer than expected, plus I had never done it before. The worst part is definitely removing the starter! I made a "how to" thread after I got done ...
Basically, you just disconnect the battery, remove the starter, loosen the nuts (3 that hold each mount to the engine and 1 that holds mount to crossmember), remove the large nut that holds each mount to the crossmember on each side, then place a jack with a block of wood under the oil pan (I used a piece of wood that covered most of the oil pan) and jack the engne until the studs come out of the holes. Then you finish removing the three nuts (each side that you previously loosened) holding the mounts to the motor ... and then slide the mount out .... Slide the new one in and bolt it up ... for each side. At least that's how I did it in my garage.
The trans mount is under the transmission. It has a bar that runs from one side of the frame to the other under the trans. Here's a pic from above my h-pipe but the green arrows indicate the mount.
Hope that helps.