Computer value, how much? Options

[Hanyo]

Hey guys,
I'm thinking about getting rid of this computer I'm using and build a new one or buying a laptop.

I'm thinking about selling this system I'm using right now.

here are my computer stats:

Xp1800 (1.53 ghz) which equal to 1.8 ghz pentium.
768 dual channel corsair ddr pc3200 ram.
40 gig western digital hard drive
Azza kt 400 alh motherboard with built in sound and ethernet
Chaintech Ti4200 video card.
The case is some off brand case with foam lining the whole inside.
56x mad dog (office max) cd burner.
Microsoft wireless mouse and keyboard
KDS xflat 19 inch flat screen monitor ( 18.1 viewable)
4.1 microlabs speakers.
350w coolmax powersupply.
56k modem.

That is pretty much it.. Not what i would call a fast computer. But it runs at around 12 dbs which is pretty darn silent. You would have to really try hard to hear this computer running. This is the reason why it is so slow. This computer is set up so you can drop in a faster cpu with out worring about heatsinks and ram issues.

Anyways. Lets cut to the chase. What do you think is a fair price for this system. Note: I am not trying to sell this computer to anyone here. I just asking for your opinion.

Do you think its worth spending another 100 bucks and putting in a XP2600 which will make the computer 2.0 ghz ( 2.6 pentium equivilent )?

[turboinduction]

I push the 3000 mark on almost every machine I build. The "how" on the wonderful 500 dollar computer is... Cheap internals. Low (128mb or less) memory. Low graphics (on board 32mb). Small HD (40 or less). Etc Etc Etc. When these companies build these, they attract buyers with the wonder gizmo like a dvd burner. The cost of a normal computer is 800, cost of a gaming computer is 1400, cost of a nice gaming computer is 1700. And the price goes up.

-Ti