Will all these Hardware work together?

[M¡çhaèL]

Hi everyone,

I'm planning on building a new computer (this will be my first build) and I was wondering if everything was compatible. Also if you have any reommendations that would be helpful as well.

AMD Athlon 64 X2 4200

XFX Geforce 7900 GT

RAM

Case with 450 watt power supply

Motherboard

250 GB Hard Drive

Sound Card

DVD/CD Combo Drive

DVD Drive

LCD Monitor

Speakers

Modem

Thanks for any help,

-Michael