I've had this saw for probably 18 years and it is tough to beat. Mine is 13 amp, new ones are 15 amp. Not sure how much of a difference this makes, because this saw just doesn't bog down.
http://www.amazon.com/DEWALT-DW364K-.../dp/B00002231Z
Some will argue that Dewalt quality has gone downhill in the past couple years, but I can't comment on that as now I buy mostly Makita cordless and Bosch corded tools, but I wouldn't hesitate to recommend this saw to anybody.
Also have this saw, which is awesome for small jobs. Haven't killed a battery yet, but for the work I've been doing recently it is only being used for 10-15 cuts at a time.
http://www.amazon.com/Makita-Bare-To...2942326&sr=8-4
The choice of blades is a consideration, too. A great blade can make a mediocre saw into a pretty good saw.
I'm partial to Freud/Diablo blades myself.
http://www.amazon.com/Freud-D0724X-C...2942538&sr=1-2
Thin kerf, and seem to hold an edge for a very long time.
I've used, but not owned, Milwakee, Makita, Hitachi and Porter Cable saws and all were very good. But on various sites people would always reach for my Dewalt DW364.
Good luck with the decision.
--Bill