Same here man, picked up a 4800 at the recent Harvey Norman sales...nowhere near as good a deal as yours though, obviously. Good work!
a) Yeah, Krups seal/basket combo seems to be the way to go for sure. Ill be investing. Seems to help to shop around as pricing isnt all that consistent.
b) No idea on tampers, but the Sunbeam press seems to be alright according to others. Itll be a 52mm at any rate seeing as the baskets are 53mm.
c) Grinder will be as good as you can afford basically. Minimum of Sunbeam 0450 apparently. Again, Im just using pre-ground at the moment.
d) Bingo! Little Tupperware thingys are ideal, or ziplock bags/valve bags...anything you can remove air from. Make sure not to grind more than you need at once, Id be going a few days in advance at the outside.
Cheers - boingk
PS: Anyone, feel free to flame me if Ive said anything wrong/stupid/fatal.