well darkar i got one a few days ago, i.e. the acer aspire 3000. it was cheap because it has this cheap sempron processor. It packs 1.6ghz but i would argue that it's faster (just kidding i upgraded the ram to 512mb so it works great). the only problem i have and that is with the battery, which only lasts an hour and 30 minutes.
i think that it was definitely worth the $600+ that i paid for it since it performs great, has great wifi and other cool features.