I'm thinking of building a PC. I have never done anything like this before, but I was on tigerdirect.ca and this is the stuff I've picked out. Am I missing something? Is everything I'm picking compatable with each other?

I'm going to leave out the non important stuff.

DVD drive
HDD
Monitor
Keyboard & Mouse
B450-2107 :: Biostar GeForce 6100-M7 NVIDIA Socket 754 MicroATX Motherboard / Audio / PCI Express / 10/100 Ethernet LAN / USB 2.0 / Serial ATA / RAID (3 lbs)
D10-2090 :: Diamond S120 Radeon 9550 / 256MB DDR / AGP 8x / DVI / VGA / TV Out / Video Card (1 lbs)
Remove this product from your shopping cart A19-1000 :: A-Data 1024MB PC3200 DDR 400MHz Memory (0.5 lbs)
Remove this product from your shopping cart CP1-A64-30009 E :: AMD Athlon 64 3000+ / 512KB Cache / 2000MHz FSB / Socket 939 / Venice Core / Processor with Fan (1 lbs)
TC3J-4000 :: Power Up 2526 Blue ATX Mid-Tower Case with Clear Side, Front USB and Audio Ports and 400-Watt 24-Pin Ready Power Supply (12 lbs)

And I realize that I'm not going with those $400 dollar video cards. The only games I would play would be Halo and GTA. And it's not like that I would be constantly be playing these games, just on some occasions, and if I can't get like 785378298 fps then it's not that big of a deal to me.

And I'm going to be using Windows MCE, how would I go about watching TV on this baby?

And can I connect to the internet with this using just my calbe modem from the internet company?

Your motherboard and your CPU are incompatible.
You have a 939 pin CPU on your list and a 754 pin (CPU socket) motherboard!

Some one else can probably help you regarding your MCE set up etc.

The MB is PCI-e the Video Card is AGP which wont mix either...

Stay away from the $60 video cards if you want to play ANY games at all or you'll be very dissapointed.

And to watch TV your going to need a Tuner card as well or an All in Wonder Video Card...

get the all in wonder, like Troll said...
I have it and it kicks major butt...

Okay, I changed my videocard to this one and my motherboard to this one. I think that I've got everything under controll here.

Add a router to you list. You don't want your brand new PC to be directly connected to the internet.

I have a wireless router, and instead of getting a wireless card, I wanted to stick the router in my room because I want a stronger signal for my DS and Wii when I get it, and my parents are getting a new computer, and I would just tell them that they need a wireless card to get on the internet. And howcome you don't want to be directly connected to the internet on a new computer?

The ATI All-In-Wonder 2006 edt X1300 is the exact card I have. ..I can show ya how to do dual monitor if u like...or anything eles you want to knw about it.
anyway very good choice

Because your PC's real IP address would be exposed. A router hides your PC behind a firewall (unless it's a really cheap router). It might be upsetting to get hacked before you can even load all the stupid patches.