I am far from being the expert here, but I think the new 2005 line of Dahons will give you some good options. Since suspension dosn't hurt, check the P8s.
I personally gave up portability for confort and solidness, so I ended up with a Halfway that made me a big fan of Giant. But the Halfway is far from being the most practical folder once it's folded.
Just my US$ 0.02.
Rafael