htpc advice - which to choose

hi mate these are my final build options, which would you choose?

Hi all,
I'm after a new htpc - I currently own an acer revo 3600.

I was thinking of three different options,

#1
Asrock e350 zacate
4gb ddr3 kingston value ram
30gb kingston ssd
mini itx case (what would be a good option? Antec isk-150?)
possibly ati 6450/ nvidia gt430
asus xonar dg

#2
intel e2140 (already own)
asrock g41m mobo
4gb ddr3 kingston value ram
30gb kingston ssd
microatx case (what would be a good option?)
ati 6450/ nvidia gt430
asus xonar dg

#3
amd llano 3650
llano mobo probably asrock
4gb ddr3 kingston value ram
30gb kingston ssd
microatx case

my requirements are:
1080p playback
3d 1080p playback
ability to handle 40-50gb blu ray files
xbmc (windows or linux)
low power consumption

Thanks.