If you're planning to OC your system, I'd definitely go for the NZXT Havik 140. It gives you more headroom for cooling potential and it doesn't have many restrictions with RAM clearance.
From the selections of the AU online etailer, I've found a couple of the following that may interest you.
Memory:
Kingston 8G(2x4G) DDR3 1600MHz CL9 HyperX
G Skill 8G(2x4G)DDR3 1600Mhz PC3-12800 CL8(F3-12800CL8D-8GB
Video Card:
MSI GTX570 Twin Frozr III/OC
Gigabyte GTX560 GOC 1G DDR5 PCI-E2.0 DualLink DVI Mini HDMI (Can be SLI)

From the selections of the AU online etailer, I've found a couple of the following that may interest you.

Memory:
Kingston 8G(2x4G) DDR3 1600MHz CL9 HyperX
G Skill 8G(2x4G)DDR3 1600Mhz PC3-12800 CL8(F3-12800CL8D-8GB
Video Card:
MSI GTX570 Twin Frozr III/OC
Gigabyte GTX560 GOC 1G DDR5 PCI-E2.0 DualLink DVI Mini HDMI (Can be SLI)