The 27" monitor got my vote. Why?
Because:
iPad is a great and fun product, but it's sort of useless in so many ways!
Budget laptops/netbooks are really handy, but they're made specifically for web browsing, which i can perfectly do with my cell phone, or my home computer

2Tb external hdd - My 1Tb internal hdd is pretty enough for me

CPU/Memory/Mobo compo - I love my rig, and i don't want to change it.
GTX 460 - best card nvidia has to offer, but it's already being overtake by the amd 6 series

))
128 GB SSD - the extra loading time of the OS would be great, but I think i'll wait a few seconds longer
Deluxa chassis - sounds nice, but I already have every single wire in place at my TTv9 case, and it would be a sin to take it apart
I recently got a 360 (To play through some exclusives) and i only have one 24" monitor, so everytime I want to play it, i have to switch HDMI cables, and that's really bad for the monitor's hdmi input, and it's quire irritating actually.
Cheers!