I want to update my memory and video CARD on my desktop, that is 3 years old. Will this work? My computer is:
2.4 Ghz Intel Celeron
256mb DDR DSRAM
80 gb hard drive
integrated REAL256 with up to 64mb shared memory
available 4x AGP slot for graphics upgrade

I bought High speed memory upgrade, 512 mb DDR.

and Radeon 9550 256mb/DDR AGP version, says system requirements are Pentium 4/III/Celeron, or compatible with AGP 4X
128 mb of system memory (but my computer says 64 mb shared memory)?

can I do this myself? I do the memory first?The 64MB is for the integrated graphics system. Your 256MB/512MB/768MB is what it means. Yes it will work just fine. Don't expect amazing performance though. For amazing performance, go with the 7600GS I have one and it runs everything maxed out at about an fps of probably 40 to 80fps. Do whichever one first. yes u can do it yourself. I'll be happy to show u how.Oh yes, show me how!!! Or direct me to any website that can help. Actually, I have a laptop that has everything I need. This desktop is for my 6 y.o. to PLAY her games. So I think this should do the job for her. I hope so anyway.
I need to install my memory first I guess. I was BASICALLY going to read the directions and go from there.Below is a How To on graphics card.

http://www.buildeasypc.com/hw/howto/instgraphics.htm

Below is for memory.

http://www.buildeasypc.com/hw/howto/instmemory.htm

As a matter of fact buildeasypc.com is just a good all
around link.See below.Plenty of step by step pictures.

http://www.buildeasypc.com/

On the lighter side here is you a----------->SNAP! [smiley=thumbsup.gif]What make and model computer is this?  You may need to access your BIOS settings and disable onboard, i.e. integrated, video.  Access/Enter MOTHERBOARD BIOS

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The 64MB is for the integrated graphics system. [highlight]Your 256MB/512MB/768MB is what it means.[/highlight]