Well, I have a Sony A170. Concise Review:
Screen is great.
It's pretty cool looking.
It runs very cool.
Connectors on the side are convenient.
Battery life is average.
Keyboard is stinky.
Harddrive is not upgradeable without a significant amount of trouble.
No svideo out without a docking station.
Mouse pad is not all that great.
I've had lots of trouble with the video when gaming, like it gets too hot or something. Probably needs more cooling.
That's enough. I would actually recommend it, though, depending on your needs, though I will probably never buy another one because of the various negatives I sighted.