Hp Compaq 6510b/6710b

Hi,

I am planning to buy a new laptop for my development related needs.
I already have a 4 year old Dell Inspiron and the new one will replace
it for my technical needs.

I plan to put a Sizable linux partition (Ubuntu) on the system.

Before buying, I am looking for user comments.. People who have
already used this..

or any other hp compaq notebooks.. how r they ?

worth their money ? good ? bad ? ugly ? wonderful ?
heat too much ? too much noise ? how do the parts behave..

general stuff like that...

I appreciate all input.

regards
raghav..