450W power supply can cost anywhere from $20 to $100+ depending on the brand. I suggest going with proven brands to ensure more than a month of functionality. Thermaltake, OCZ and Rosewill (in order from most to least expensive) make good power supplies.
Check NewEgg for some prices on 450W power supplies
Newegg.com - Computer Hardware,Power Supplies,Power Supplies,401 - 500W,401 - 450W,450W
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Maturity is knowing you were an idiot in the past. Wisdom is knowing that you'll be an idiot in the future. Common sense is knowing that you should try not to be an idiot now. - J. Jacques
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