Will my buid work?

[π123]

Here are my parts I'm thinking about getting:

 

Case (mid-ATX with bundled fans): COOLER MASTER Mystique RC-632S-KKN1-GP;

Motherboard (ATX, P43): GIGABYTE GA-EP43-DS3LR;

CPU (2.5GHz): Intel Core 2 Quad Q8300;

Video card (GeForce 9500 GT): EVGA 512-P3-N954-TR;

RAM (2GBx2): G.SKILL 240-Pin DDR2 SDRAM 1066;

Hard Drive (640GB): Western Digital Caviar SE16 WD6400AAKS;

Optical Drive (two, 6-48x DVD/CD RW): LG Black GH20NS15;

Card reader: Sabrent CRW-UINB;

Power (500W, ATX12V, 12cm): Rosewill RP500-2;

CPU Fan (92mm): ARCTIC COOLING Freezer 7 Pro;

And of course a monitor, keyboard, mouse, and speakers.

 

Would these parts work with Leopard? (Snow Leopard eventually?) Would I need any special hacks?