Your price range for a new supply would need to be increased just to get into a half way decent low powered model with enough to run your build there. Newegg has four pages full of "cheapies" seen at
http://www.newegg.com/Product/Produ...1&N=2010320058+4093&Submit=ENE&Subcategory=58 thet are priced from $17.99 to roughly $25.
There are 400-500w models seen in that price range to choose from. But if you wait the 30 days or so you would make out better in the long run. You can rush into a cheapy psu to see it flake out on you and possibly do some damage there. That would cost a lot more. But you could "luck out" as the expression goes and have one that lasts? A look at the hardware environment you have points to a need of a 400-430w model for running it basically with the two ide drives along with card reader and the better video card.
Unfortunately the online support section didn't list a link for the user manual on that model board. Just remember the $20 supplies seen there are the "crapola" that is usually thrown into the "case with supply" deals and don't count heavily on any one you go with. When you are ready to get a good one here's a somewhat "good" and "bad" list on favorable and not so favorable makes.
Good:
Akasa PaxPower - Antec(except Smart Power models) - Astec - AOpen - Channel Well - Coolermaster - Enermax
- Enlight - Fortron Source (Sparkle) - HEC - Hi-Power - Jeantech - NSpire - OCZ Technology - PC Power & Cooling - PowerMan
- Seasonic - SilenX - SilverStone - Tagan - TTGI/SuperFlower - Vantec - Zippy / Emacs - Verax - Zalman
- Corsair
Bad:
Allied - Antec Smart Power models(recommend True Power or NeoHE) - Aspire - CoolMax - DEER - EYE-T
- KingStar - L&C - Linkworld - Logisys - PowerMagic - PowerUp - Powmax - Q-Tec - Raidmax - Skyhawk - Star
- Turbolink - Ultra - ThermalTake
The comparison list here is based mainly on complaints heard about certain brands not an "exact science" as one could call it.