New HTPC build, need comfirming

Okay guys I am planning on a nice budget PC for playing some DivX movies and watching satellite TV on and playing the odd racing car game or whatever. I have some choices to make. I have been saving for some time in order to go ahead with this machine. This computer will be hooked up to a TV set, I know it'll be okay though, I checked. Here are my parts list:

Mobo/CPU
http://www.ebuyer.com/customer/prod...2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=98783

RAM
GeIL 256MB PC3200 Value CAS2.5
http://www.overclockers.co.uk/acatalog/GeIL_Value.html

CASE/PSU
OcUK Value Aspire X-Qpack Cube Case - Red
http://www.overclockers.co.uk/acatalog/OcUK_Value.html

DVDRW
http://www.ebuyer.com/customer/prod...2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=97237

Mouse/Keyboard (5th UP)
http://www.overclockers.co.uk/acatalog/Online_Catalogue_Desktop_Combinations_54.html

GFX
I aleady have a PCI Nvidia 5200 128MB I could use for now if I was upgrading it I'd get a ATi 9800 or whatever.

TV Card
http://www.ebuyer.com/customer/prod...2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=54275

NETWORKING

I'll have two computers so I need one router and two PCI card things.

http://www.ebuyer.com/customer/prod...2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=64620
http://www.ebuyer.com/customer/prod...2hvd19wcm9kdWN0X292ZXJ2aWV3&product_uid=94367

Right then, I have a PATA hard disk and for my media I have a SATA 320GB. So is it good to order?