Help me decide between two Dells

I am looking at two Dells right now. One, I've already agreed to purchase and I'm considering calling him back and telling him that I'm not interested, but I don't know what to do.

I'm looking at these two:

1) Labreastude C600 PIII 850 Mhz pentium mobile processor 384 MB ram 14.1" XGA screen with 8MB dedicated graphics 2 x 65W-hr almost new Sony LiIon batteries (4+ hours fully charged) (just the batteries are more than a 100 dollars each on Dell website ) 802.11b wireless card CDROM drive Win 2K Comes with all accessories (Battery adapter, External floppy drive and carrying case )

349.00

2) Inspiron B120 or B130

Specs for B120 Celeron 1.4 GHz 512 shared, 2 Dimm (B130: 256 DDR2 SDRAM 1 Dimm) 40 gig HD 24x CD burner DVD combo 1370 Internal Wireless XP Home edition

599- 100 dollar mail in - 1-3 off for president's day sale = approx. 333.00

My questions are: 1) Is it a better idea to go with the Pentium III even though it's slower than the Celeron? 2)The Inspirons are cheaper, but I'm going to have to mess with removing all of the extra crap that Dell puts on it. Is it worth the time?? 3) Which would you buy and why?

I don't know much about computers. I currently have a desktop that I built about 5 years ago and I haven't really kept up with things since then. Any adivce much appreciated. I have to make my decision by tommorrow!!

Thanks!!!