I ran HDTach a few times yesterday.. The transfer rate (Read, I think) starts at 110 and drops to about 55-60 at the "end" of the disk.
I'm at work ATM, will post some graphs when I get home. I'm also planning to link to those graphs in the "Samsung F2 EcoGreen is out!" thread, revitalized with the SPCR review (very nice review, BTW..)
I also messed up a bit with Victoria. It only seemed to be able to put AAM to minimum (using Win 7 RC, so there might be an incompatibility. Had to use "Admin rights" just to get it to open!). I tried a few more programs and finally settled on hdparm to set the AAM level.
With AAM set to 254 (fastest / loudest) the transfer rate was between 110 - 55 MB/sec, with an access time of 14,9 ms. Setting AAM to 128 increased the access time to 17,7 ms, with no detectable decrease in transfer rate (as expected).
Victoria's "access time test" did work, though. For measure sound at least (the reported access time didn't seem very accurate). With AAM set to 254, I could hear "clicking" from the drive (probably the heads) as I ran the test - not disturbing though, in fact I had to pay attention to notice it. Once I did notice it, it remained audible. If I get disturbed by it I'll play some more with the AAM (what setting would you recommend? 200 or so? I have to check the noise by Victoria's test again..).
I haven't yet played a game on the new drive / OS; I hope level loading times won't become unbearably long (coming from 2x 7.200 rpm RAID 0). Up to now, with normal "daily" usage it's not annoying at all - I'm quite pleased with my purchase. Thanks for all the help!
By the way; I used to think my FSP Epsilon 600W PSU was making a lot of noise (in fact it was the HDD's screwed to the case), so I checked SPCR and bought an Enermax MODU82+ 625W. The PSU is very hard to find nowadays, might even be discountinued; but it's doing its job almost silently and without problems. I have to put my ear next to it to hear a soft "whoosh"ing sound, with its 120 mm fan running at about 500 rpm.
If you can hear the PSU fan at 350 rpm; you must have VERY acute hearing!
(The biggest noise I hear while using the PC is my tinnitis, developed after years of headphone usage I think. Sadly I can't do much about it.. 
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I'm sure that my modified InWin IP-S350Q2 is quieter that any non-fanless PSU (on this forum even, khe-khe), but it's of course less effective and powerful than Enermax. These are top PSUs.