Your list looks good; don't forget your kbd - I use a "Gene" wireless kbd purchased from mp3car store ($70).
Caution about that Voom case: it's got little rrom to spare. While you can fit a slot-load cdrom drive and etc in it, sliding the two halves shut can be tricky so as not to pinch cabling or to have cabling push against memory board, thus warping it...
Good idea on the larger HD 'cause you'd be better off ripping yr cd's at a better format than mp3. I ripped about 250 cd's using .wav format and have much better sound than my old mp3 rips. I still have 160GB of a 320GB HD left after installing programs and ripping 250+ cd's.
I have a Netgear fast wireless card that I use when i can get on a DSL connection; a bluetooth USB dngle for connecting via mypocket pc phone.
sounds like yr off to good start. Tedious tho it be, keep reading the forum posts and do lots of research. It pays to study...
Best of Luck and Blessings!