Hi,
I am using Acer Scanwit 2720s. No Digital Ice, so touching up the dust and scratches in PS is a real pain. The performance is good enough for me, but I have not tried any other scanners for comparison.
Acer has a newer model with DigitalIce some time ago - ScanWit 2740s. However, I could not find this product on their website anymore, though the online shop
www.eacer.com still lists it for US$499. You can still find this product on some US online stores. The price is about US$470.
For the 2720s, the price in US is about $369 on
www.eacer.com, but you can get it for US$269 on ebay from a seller called johnyfool. I got mine from him 10 months ago for US$280.
Here's a sample of a scanned picture using 2720s:
You can get the higher resolution version (1200X812) here:
http://www.pbase.com/image/368791/original
Hope this helps.
-Roy