Will I need a new PSU?

My new computer will be coming in a week, here are the specs:

3.0 P4 800 FSB
512 RAM
80 GB HD
CDRW Drive
Floppy Drive

I'm planning on adding
CHAINTECH nVIDIA GeForce FX 5200 Video Card, 256MB DDR, 128-bit, DVI/TV-Out, PCI, Model "P-FX20" -RETAIL
- $96 shipped

HAUPPAUGE WINTV-PVR 150 MCE PERSONAL VIDEO RECORDER - 1042 (TV Tuner Card)
- $75 shipped






Keep in mind that this is a dell dimension 3000, the stock PSU is this:

Power
Input voltage: 100 to 120V at 60 Hz; or 200 to 240 V at 50 Hz
Output wattage: 250 Watts maximum continuous
Output voltage: 3.3V, 5V, and 12V
Heat dissipation: 853 BTU/hour (fully loaded computer without monitor)
Power management: APM
Backup battery: 3.0 V CR2032 coin cell







So do you think I will need a better PSU? Any recommendations if I do?



Ps. I heard that DELL PSU are proprietary, any truth to this?

 

try this one: http://www.newegg.com/app/ViewProductDesc.asp?description=17-104-966&depa=0. i find it is the best for the money and is pretty much bullet-proof

 

if the only things you are adding are the video card and the video recorder device ... that should be enough ... although it does seem on the low side, if it comes standard like that, it should be fine as that graphics card isn't very power hungry

and yea ... some old dell psu/mobos are proprietary... but I don't think they do that anymore

 

to be on the safe side u can check ur power requirements here:
http://www.jscustompcs.com/power_supply/