Loooow Budget build

Hey there I plan on building a new computer to replace my current one
Current specs are:
AMD 2500+ (1.8GHz)
ASrock K7S8X
1 GB ram (256+256+512)
80GB HDD
no name cd burner
ATI Radeon 9550
westinghouse 19" widescreen

I am looking for a cheap (about 500) build for mainly web browsing, apps, maybe some image editing nothing to big, and some gaming, im not looking to get amazing gfx i just dont wanna lag anymore ^.^ i currently play BF2, CSS, TF2, COD2
but i don't plan to play Crysis or anything like that

i am not looking to overclock and this build needs to last me a while

i have taken a look at the 500 dollar gaming pc build and most of the parts im planning on getting are about the same price
anyway heres what i have so far

AMD Athlon 64 X2 5000+ ($66)
http://www.newegg.com/Product/Prod [...] 6819103211

Thermaltake TMG A3 ($14)
http://www.newegg.com/Product/Prod [...] 6835106084

GIGABYTE GA-MA770-DS3 ($90)
http://www.newegg.com/Product/Prod [...] 6813128081

G.SKILL 2GB (2 x 1GB) ($45)
http://www.newegg.com/Product/Prod [...] 6820231098

XFX Geforce 8600GT XXX 256MB ($90)
http://www.newegg.com/Product/Prod [...] 6814150229

Seagate 250GB ($65)
http://www.newegg.com/Product/Prod [...] 6822148300

Samsung DVD burner ($27)
http://www.newegg.com/Product/Prod [...] 6827151154


Questions:

1. Is AMD the right choice, my 2500+ has been pretty reliable and it seems like you get more bang for your buck with the 5000+ over the pentium D (1.8), im not overclocking

2. Well i havent decided on a case yet, the Antec case with the earthwatts PSU included is at 100 bucks now on newegg instead of 66 stated in the "$500 Gaming PC" article, so any advice here??
I don't care about having a fancy case, just a cheap one with a good PSU would be nice

3. I honestly have no idea about what CPU cooler to get, any ideas?? the one that i put looks ok, but are there any good ones i havent seen yet? some thing cheap would be nice

4. Is the motherboard i chose a good one?

5. Any other ideas to help me save some cash on this build??

Thanks in advance for any help you can give me

-Zack

http://www.newegg.com/Product/Prod [...] 6819103211
comes with CPU cooler

for about $50 more after mail in rebate, you could get,

Intel Core 2 Duo E4600 Allendale 2.4GHz 2MB L2 Cache
http://www.newegg.com/Product/Prod [...] 6819115032

GIGABYTE GA-EP35-DS3L LGA 775 Intel P35
http://www.newegg.com/Product/Prod [...] 6813128337

CORSAIR XMS2 2GB (2 x 1GB) TWIN2X2048-6400C4
http://www.newegg.com/Product/Prod [...] 6820145034

I agree with snakej, u really should take some time and consideration into building this computer. U might wanna also give yourself a little bigger budget, because games are just gonna get more and more intense. From my experience , i would say that building low-end computers by hand doesnt really help u at all. Companies like dell excel at building low end computers because they get parts for wayy cheaper than we do. So if u want a really low end computer for really cheap, u should also look into dell or hp computers

Save money and use the same case?

For the Same Price, Consider the 8600GTS.......
http://www.newegg.com/Product/Prod [...] 6814121069

For $20 More AR, Seriously consider a Seriously better card.....
http://www.newegg.com/Product/Prod [...] 6814103051