Part of the issue there may be ATI. (However, I don't want to say go ahead and install F10 then have you hunt me down and kill me. ---Hrrm, in the UK? Well, yeah, go ahead and install F10.)
Seriously, it hasn't given me many issues, but then, I'm used to Rawhide so things like sound not working, or something else going wrong are simply minor, usually (though not always) easily fixed things.
The advantage at this moment of F10 and/or Intrepid Ibex are that the 2.6.27 kernel that they are using supports the wireless card. Sad to say, you seem to use the LED light support.
F9 and Ubuntu Hardy Herring--errm, Heron, will then support the card by using the MadWifi drivers (it's relatively trivial) and the LED lights too.
The thing is, that most of these offering SSD drives are, perhaps in an effort to keep cost down, offering an apparently low quality rather slow one, which is what turned me off with the Dell. Also cost.
As for the Wind, it was simply a matter, for me, of it costing so much more than the Acer.
I think the AA1 with 1 Gig of RAM (upgrading RAM is decidedly non-trivial--one has to take the whole thing apart, including the rubber feet on the bottom--seriously, there are screws hidden under the feet) will meet your needs. Ubuntu might be the better choice at present, it's also beta (at least Intrepid) but it seems a little further along than F10.
Still...I really do wonder if most of your problems are due to the never ending issues that so many distributions seem to have with ATI.