[Krlll]

Why didnt the TFT work wrong connection or something else?
The something else could be that your onboard video was not able to display the native resolution of the monitor.
The CRT will work fine with a new PC.You might need a DVI to VGA adapter though if the video output is DVI only.
Like I say the PSU is a very low wattage so that is another thing you will have to factor in.
You still havent said what you want the PC for or how much you want to spend.
On ebay right now I found this spec for $300

Mother Board: ECS PT890T - A Ver. 1.0 Main Board
CPU: 3.06GHz Intel Celeron D 346 533MHz 256K LGA775 EM64T 90nm CPU with Heat Sink and Fan
Video Card: Nvidia GeForce 6800 GS with 256MB of DDR2 Memory
Memory: 1 Gigabyte (2 x 512) of Kingston PC 5300 DDR2 Memory
Sound Card: Sound Blaster "Live" 24bit Sound Card
Storage Internal:

• Western Digital Caviar SE 7200 RPM 80 Gagabyte Hard Drive for the Main Drive
• Seagate Barracuda 7200.7 RPM ST3120022A 120 Gigabyte Hard Drive for the Secondary Drive

External Storage:

• MY BOOK * Essential Edition WD2500JB 250 Gigabyte External USB 2.0 Hard Drive

Imaging Drives:

• Memorex 52MAXX 325AJ1 CDRW
• Sony DVDRW DRU-810A (with recent firmware upgrade) DVDRW Drive

Power Supply: Antec Smart Power 2.0 500 Watt Power Supply
CPU Case: Antec SLK2650-BQE Solution Series Mid-Tower Case (Black)
Display: Balance CM2015 15" TFT LCD Monitor
Sound System: Logitech X-530 5.1 Surround Sound Speaker System

Not saying thats a great PC or anything but its just cheap and I found it in 2 minutes.
You could sell your own for maybe $100 and get this,far easier than upgrading a Compaq Presario.
These mass produced computers(Dell/Compaq,etc) sometimes have cases/connections that are not compatible with other hardware.

[mtdrums]

Wow, that is cheap. Well I don't really need a great PC. I just need it for pictures, videos, music, and occasional gaming. I'm willing to spend about $400-$500. Do you think building my own computer would be a better deal than buying a mass produced one at that price?

[Krlll]

You would have to shop around and see.
I looked for stuff on eBay in the U.S.(eBay is not always the cheapest or best place to buy I was just checking)and for about $500 I could put together.
Bear in mind that this was done in a few minutes and if I was building it myslef I would spend a long time looking for bargains.
Try Newegg.com and places like that.
Core 2 Duo E6300
Motherboard
1GB Ram
500W PSU
8600GTS

So shop around for those components and see what you can do then check other mass produced PCs and see how they fare against it.
A system like that compared to what you have now would be like comparing a Formula 1 race car to a scooter.LOL

[mtdrums]

Wow, that's a pretty good setup for $500.

So shop around for those components and see what you can do then check other mass produced PCs and see how they fare against it.
A system like that compared to what you have now would be like comparing a Formula 1 race car to a scooter.LOL

Haha, that's very true. I've never really looked at computers on ebay.. But I guess I should. Newegg is usually the first place I go when I need anything computer related.