[nocturnal]

Okay i finally think i know what i want. I'm getting an HP a600n for 550$. I want a custom pc but it's my parents buying the computer so they don't really trust me. But here's the problem now the vid card. As you guys know i'm low on cash (or i mean parents). Here's my choices

1st choice: ATI radeon 9600 pro for 139$
2-asylum 256mb 5200 Geforce 129$
3-geforce 5500 overclocked 99$

i have a very low knowledge of video card so plz help! I just want a comp. ready for hl2 sooooo bad! My budget for the vid card is nothing over 140$ so plz ne suggestions