This may not suit all, but on this ecode Dell have made it that if you select 2yrs at home (inc weekends and eve) warranty there is a discount instead of it upping the price quite a bit.
So select "2Yr In-Home Warranty Support, including evenings and Saturdays" and use the attached voucher for 10% off the deal too.
Windows 7 Upgrade Eligible
305-N0754510 Home site - Best price £522.20 Delivered.
Intel Core 2 Duo Processor T6500 (2.1GHz, 800MHz, 2MB)
Genuine Windows Vista® SP1 Home Premium (64 BIT) - English
4096MB 800MHz Dual Channel DDR2 SDRAM [2x2048]
500GB (5400RPM) Serial ATA Hard Drive
256MB ATI Mobility Radeon HD4330
90W AC Adapter
Inspiron 1545 Resource DVD (Diagnostic & Drivers)
1.3 Mega pixel Integrated Web Camera
Intel WiFi Link 5100 (802.11 a/b/g/n 1X2) 1/2 MiniCard
DVD +/- RW Drive (read/write CD & DVD)
15.6" Widescreen WXGA WLED (1366 x 768) TFT Display with TrueLife
1Yr Limited Warranty - Collect & Return
2Yr In-Home Warranty Support, including evenings and Saturdays