I bought the Trust PW-5250 and foud some info. Comparison with the original Dell PSU:

Dell PSU:
+12 VDC: 14A
+5 VDC: 22A
+3.3 VDC: 18A
–12 VDC: 1A
+5 VFP: 2A
250W, max 200WDC continuous

Trust PSU:
+12 VDC: 16A
+5 VDC: 30A
+3.3 VDC: 20A
–12 VDC: 1A
+5 VFP: not specified; -5V is 1A
420W, nothing specified but appears to be continuous

So at the 12V it's still only 16A (for 29.95€ you shouldn't expect a PSU that resembles a welding machine ), but that's more than 14A anyway and in combination with other loads, it will be able to keep delivering that load. The 5 and 3.3 currents are also significantly larger.

I'll install the PSU in a few weeks time I think, atm I really need the PC so I won't start doing magic inside it .

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