No Dell's have reset buttons anymore. Hold the power button down for 5 seconds or so to power off and reset.

"Inspiration is the Mother of Invention. Desperation is its Father."

System 1:

Inspiron 4100
1.2 GHz-M
14.1 SXGA+
1 GB Crucial RAM
40 GB Toshiba ATA 100 5400 rpm
30 GB IBM ATA 100 Media Bay
8x Combo CD-RW/DVD
16 MB ATI Radeon
10/100 Ethernet
Compaq IPaq 11MPS Wireless Ethernet
Windows XP Home
Bright Yellow and Blue Herringbone Color Kits
Office XP Professional

System 2:

Dimension 8200
2.4 GHz
768 MB RDRAM
40 + 100 + 60 GB HD's
Promise ATA 100 Controller
Adaptec Duo Card (Firewire/USB 2.0)
80 GB Firewire
16x DVD
HP 200i DVD+RW/+R
32x Que! USB 2.0 CDRW Drive
128 MB Geforce4 TI4400
SB Live!
17" Samsung TFT LCD Monitor
Linksys 10/100 USB Ethernet
Hauppauge WinTheater Stero TV
WinXP Home
Office XP Professional

Some systems actually have it (notice I said SOME) ... but you can't really use it (if it has one) because you can't press it unless you can access the power control panel, which can't be done without opening up the case.