Some Laptop Questions

[TevashSzat]

I'm thinking of getting a gaming laptop for a while now, yes you guys can all laugh at me and whatnot, but I am not getting a desktop and carrying it around anymore; it is simply too much of a pain to unplug everything and reset everything everytime

Anyways, before I buy it I just have a couple of questions:

1) How does laptop videocards compare to normal desktop ones, ie how would the nVidia GeForce Go 8600M GT 512MB DDR2 16X PCI Express compare to a desktop GeForce 8600M GT?

2) Most laptops I've looked at are widescreen; does it pose much of an issue with most modern games with the streching or do most modern games support widescreen resolutions now?

3) I am probably going to get 4 gigs of RAM just because I can and RAM is relatively cheap. That means a 64 bit OS too and I've heard some bad things about 64 bit Vista and its ability to run some games. What are they and have most of the issues with it been fixed in SP 1?

4) Are Solid State Harddrives worth the extra money? If I don't get them, I'm just gonna stick with a 7200 rpm one