few questions regarding my possible carputer
Ok, first off, i've built many desktop pc's and i've done a lot of audio upgrades in my cars. Now I want to combine both of these hobbies together just like many of you did. This is the set up i'm looking at right now.
GIGABYTE GA-945GCM-S2C LGA 775 Intel 945GC Micro ATX Intel Motherboard
Intel Pentium E2180 Allendale 2.0GHz 1MB L2 Cache LGA 775 65W Dual-Core Processor
Western Digital Caviar SE16 WD5000AAKS 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive
pqi TURBO 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 667 (PC2 5400) Dual Channel Kit Desktop Memory
Creative Sound Blaster Audigy SE SB0570LPVP 5.1 Channels 24-bit 96KHz PCI Interface Low-Profile Sound Card
BU-353 Weather-proof GPS Receiver
Centrafuse Navigation North America
Windows XP professional SP3
Lilliput EBY-701 7" Touch screen + Wide screen Monitor
JBL Grand Touring Series GTO627
I can get all the stuff installed but the thing that i cant seem to grasp no matter how much reading i've done is how to power the computer. I know how to hook it up but I dont know how many watts i will need. I am hoping to run the touchscreen and the computer off of the PSU. Also, I am wondering, is this computer overkill for a carputer? This is very limited to what I'm used to building.