An EPIA M1000 is more than adequate for most day to day tasks & will happily run WinXP with 256Mb of RAM.
Haven't got my Neo sample yet - but I expect it to be ever better than the passive LEX Light systems - spookily quiet!
I have a Scythe passive cooled EPIA M10000 also. I was sceptical at first - it's fiddly to assemble the heatlane, but it does work.
Running with the CPU @ 100% and stressing the graphics & RAM for 6 hours in a 20'c ambient resulted in a CPU temp of 72'c & a case temp of 32'c.
It is also spookily quiet!
The Hush is also very quiet, but unfortuanately, is thermally compromised. The whole internals heat up & help to derate the already mediocre Morex DC PSU, causing instability & intermittant NIC problems.
A superbly engineered, but flawed product.
Then there's the Tranquil - which has no where near the quality of the Hush & early samples had major problems with build quality. This resulted in the CPU cooler becoming detatched from the CPU.
You name an SFF system & I've had one in my hands, built & fiddled with it!
Which is my favourite?
Well it has to goto the Neo - I liked this when I first clapped eyes on it at Computex. (I'm a big LEX fan anyway).
We hope to have a passively cooled 1.6GHz PentiumM solution coming along real soon - I am really excited about this!!