I decided to get rid of the core duo and use an athlon simply for moneys sake. You cannot talk me out of it

. Once again will this setup work? Will all of these parts fit together? Are any of them known to have problems? Is there a cheap way to get a monitor? Yes i realize my threads take up room and are very novice but I need some help before I go off and buy this stuff

thanks
edit-Also, is anything way overpowered compared to the rest of the system?
-Any recomendations are appreciated
Processor-
AMD Athlon 64 FX-55 San Diego 2.6GHz
CPU cooling-
ARCTIC COOLING Freezer 64 Pro
Operating system-
Microsoft Windows XP Home
Power supply-
Rosewill RP550
case-
Rosewill TU-155
memory-
CORSAIR ValueSelect 1GB 184-Pin DDR
motherboard-
DFI LANPARTY
Hard dirve-
120GB 7200 RPM 8MB Cache
Drive-
SONY Black 16X DVD-ROM
Graphics-
EVGA GeForce 7600 GT / 256MB GDDR3
case fans-
MASSCOOL