airdale....pretty much all new laptop screens are TFT LCD displays so don't concern yourself too much as to whats behind the panel. XGA is simply a screen with 1024 horizontal resolution (# of pixels from side to side) UXGA is 1400 and UXGA+ is 1600. If i am wrong on those sizes please someone tell me.
For reference, the Satallite Toshibas, which you can see at any compUSA or bestBuy on display are all pretty much 1024 displays (14.1 or 15"), the Dells can generally run 1400 or 1600 displays in either 14.1 or 15 inch sized. The higher resolution will provide a sharper looking screen with less obvious pixelation of text and graphics. Of course, some complain that 1600 res in a 15" screen is too small to see (imaging doing that on a 15 CRT!). OS's like XP have features that compensate for most of these issues. ClearType will smooth out the jaggies on a small 1024 screen and you can resize text and icons on the higher end displays. The only thing else to consider is really the portability of the solution. To get a 6-7 lbs solution, you are limited to 14.1 screens, 15 " screens will generally be a three spindle (hdd,optical,fdd) solution which will be heavier. If you travel a lot like i used to avoid the heavier units, a few pounds make all the difference)
Keep in mind some simple rules and don't let it get to you.....all of these are nice. I have a 14.1 1024 tosh screen and have no complaints. While sure i would prefer 15" display and a higher resolution, I certainly have no regrets. I suggest lay out the key factors (weight, screen rez, screen size, processor, GPU, and price) and make a call.
Right now (for me) the optimum is the Dell 4100 series which has the same form factor as the tosh satt i currently use but has the higher res screen 1600 and 1400 options and the 32MB GF2go ( i am a nvidia fanboy but it sounds as if the MRadeon is comparable)
vec - you do realize that by the time you wait that decision out (Mradeion7500 and NV17M) ATi and Nvidia will have announced the Mradeon8500 and NV23M)😉
b