Help me...plzzzz

Hi...I need help. Below is some information about my system.

Processor: Intel(R) Pentium(R) 4 CPU 3.00GHz (2 CPUs)
Memory: 1526MB RAM DDR 400 FSB
Card name: Intel(R) 82915G/GV/910GL Express Chipset Family
Display Memory: 128.0 MB

Actually I am considering to get a graphics card so that I can play games i.e C&C, NFS Carbon, Tomb Raider Underworld or many others.

Unfortunately, my motherboard does not have an AGP slot but has in-built graphics with 128 MB memory. I know it is not enough to play such game I have mentioned here.

I don't know which graphics card I should opt for. I don't have AGP port and not sure about PCI-E slot. How can i recognize if I have a PCI-E slot installed?
I have two PCI slot and have one dial-up modem installed on one out of them.

Can I install an PCI-E video card to that slot?

some one help me...plzzzzzzzz

if its brand pc u can as well visit maker website chose mark of ur pc and see manual or specification where it should be mentioned what slots u have, even with integrated graphic card u still should have agp or pci-e slot usually pci-e are blue and agp black or brown as well on many motherboards its says what slot it is.

thnx to all of ya...i m such a dumb when it comes to computer hardware. i do a have a dial-up modem installed on my board. Is it installed on a PCI slot? and can you install a dial-up modem on PCI-E slot?

Also, I see a circuit printed on my motherboard and it says "PCIEx16 Card" but there is no slot to insert a card, only circuit printed. Do I have any hope?
Can I fix a slot on to this printed circuit?

"Intel(R) 82915G/GV/910GL Express Chipset Family"

= 910GL Express Chipset


MRFS

You get the 9400GT PCI card

Anything that will play your games will be bottlenecked by your CPU. You need to do a full upgrade to play games. Quad Core processors, lots of RAM, big power supply, and good card. Shop around and see what you can find.

The games he wants to play aren't exactly latest. A mobo upgrade to a P965 and an 8600GT should be fine. I had an 8600GT before and I was able to play the games he mentioned quite well, even though I have quad core. There shouldn't be that big of a bottleneck.

Future - GTS 250 , budget- 8/9 800GT