For me storage capacity has very low priority comparing to performance. Considering this, do you still think that raptors aren't worth extra cost?
What about these PSU:
LC-Power LC6560T Pro-Line Titan 560W ATX 2.0
Chieftec Smart GPS-550AB-A 550W ATX 2.0
OCZ StealthXStream 500W ATX 2.2 (OCZ500SXS)
All around 60 euros.
The new seagate 7200.11 drives are performing about on a par with the raptors. WD needs to update their drives, or their pricing model. All they have left is a small advantage in average seek times.
PSU's... No Antecs or Silverstones available?
OCZ is generally reliable, but some of their models tend to be a bit iffy. A good website for PSU reviews is jonnyguru.com .