Power Supply:XFX TS 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ Newegg) Total: $59.99 (Prices include shipping, taxes, and discounts when available.) (Generated by PCPartPicker 2014-03-31 09:02 EDT-0400)
5.5" x 5.9" x 3.4" < OEM sized and will fit in the DELL.