First you have to define your priorities:
You state that you want a notebook under 6 pounds but the 15.4" widescreen Pentium M notebooks I would recommend (The Toshiba M35 or the HPZT3000/Compaq X1000 (I have one of the Compaq's) or the Acer 2025 (same platform as HP/Compaq but with 128mb dedicated video option -- ATI 9600) are all in the 6.2-6.6 pound range.
Of course if you want to play games you want to get a dedicated video card and 128mb dedicated is ideal -- the Dell 8600 has the widescreen 15.4" and also a 7200rpm hard drive option (and the 128mb video) but it weighs 6.9 pounds and case and keyboard are not ideal.
HP/Compaq has a nice 14.1" LCD notebook model out (see HPshopping) but is has shared video so that is not for you (it does have a remote control in the PC card slot for DVD's/CD's and they can be played without booting up the machine).
I don't know the options for the Dell 600M but Cnet has not rated that as highly as the fully customizable Dell 8600 (but see the issues with that above).
The HPZT3000/Compaq X1000 or the Toshiba M35 series (M35S456 retail) both max out at 64mb dedicated video but that is very good for many games (but not all). See X1000forums.com (HP/Compaq dedicated site) or notebookforums.com (Toshiba and Dell) to see what games people are playing and what issues they have.
The best options if price is not a factor are the Acer 2025 or Acer Ferrari -- both can be had with the ATI 128mb dedicated video (but they are only sold as prebuilt models).
HP/Compaq can be ordered fully customized and you can save money by ordering less RAM (256MB 1 stick) and adding a 512mb RAM stick later yourself to the 2nd slot). Also, they just got the Briteview XGA LCD option which is similar to the Trubrite on the Toshiba M35.
Both the HP and the Toshiba will get 3.5 to 4 hours using wi-fi and longer not using it (games can be less as the hard drive can be running a lot but it will still be vastly superior to Pentium 4M battery life, weight, and heat.
Note that you can carry the 15.4" widescreen notebooks in any Targus backpack that will hold a 15" LCD (or other brands).
And, if you watch any DVD's the widescreen is outstanding for that.
Sony also has some good Pentium M Centrino notebooks but they will cost you more for what you get versus Toshiba or HP/Compaq. Note that the Briteview or Trubrite is very similar to the original Sony Xbrite LCD's.
Sony quality is decent (#4 to Apple, IBM and Toshiba in recent survey) but Sony technical support is rated dead last (both Consumer Reports and PC Magazine).
Note if you are a student you can get a 6% APP discount at hpshopping, a $100 custom order rebate (for HP or Compaq on any model not just the above) through 12/1/04.
You can order the Briteview LCD online (not available in retail yet on some models) or move up to SXGA or UXGA resolutions (but the standard resolution is ideal for websites and games).
Also, you can order a 5400 rpm hard drive (much faster than standard 4200rpm).
I am looking for a great light laptop with wireless( centrino would be good ) yet has good graphics and could play most of the new games .. I was looking at the Sony Vaio TR3A and the new Dell 700m but im not too sure that the graphic cards are too up to speed with the new technology that new games are offering.. I really need help!! I want a nicely deisnged laptop that doesnt way too much.. Less then 6 pnds but offers good graphics as well.. Not too pricey either!! Someone HELP!!!!!