Hey.
I want to upgrade the memory and video card on my work desktop. It’s a Dell with a Pentium 4 2.0ghz with 256mb and a 40gb hard drive. (REALLY slow)
TigerDirect has this on sale. Is it any good, and can I switch it easily by myself?
What about a video card? Any suggestions? (If all goes well, I will want to make this a dedicated PowerPoint/Media computer for the youth room.)
Do I need to throw in a bigger hard drive?

You need to find out whether your motherboard can support DDR2 ram or not. The best way is find what version of Dell PC you have and then call their hotline (or start googling the version number)
As far as video card, you’re going to want one with tv-out probably.
I can see if I have anything I can send you for free. (find out what motherboard you have and I can know for sure if the cards I have would work)
If by “media” you mean movies…you’re going to want a bigger hard drive. If by “media” you mean presentations, 40 gigs should be fine.
computers!
I’ll let you know about the motherboard.
Most of the media will be presentations, maybe some music.
If I want to use a movie, I’ll just burn a DVD.
burn a DVD thats theft!
I have 2 slots for DDR SDRAM, with a max of 512 each.
Dell Dimension 4500 Motherboard 2P997-2263 (according to http://www.discountelectronics.com/index.php?l=product_detail&p=2263&gclid=CK3HpPSM5ZECFSGWGgodNURaeQ)
Is there any reason I can’t do any of this myself?
From what I can discover, yes that motherboard accepts DDR ram. The ram you posted above is DDR2 ram. They are not compatible. Sadly, it’s actually becoming more difficult to find DDR ram (since the market is now up to DDR3).
As for installing it yourself, it is indeed a piece of cake to switch ram in and out.
What about the video card?
I forgot to check. I’ll check tomorrow morning before I come to work.