My Dell PC came with a free vista upgrade. I get the version that's right above basic, not sure what it's called. Is it worth it to take up on the offer? Either way I'm going to get it, but not sure if I should install or sell it. I'm worried that no programs that I use will be compatible on Vista.
Some of my specs

Copied from my old confirmation email)
Base AMD Athlon 64 X2 Dual-Core 3800+
Memory 1GB Dual Channel DDR2 SDRAM at 533MHz- 2DIMMs
Keyboard Dell USB Keyboard and Dell 2-button Scroll Mouse
Monitor 19 inch Ultrasharp 1907FP Digital Flat Panel
Video Card NVIDIA GeForce 6150 LE Integrated Graphics GPU
Hard Drive 160GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache
Floppy Drive and Media Reader No Floppy Drive Included
Operating System Genuine Windows® XP Media Center Edition 2005
Mouse Mouse included in Wireless, Laser or Bluetooth Package
Network Interface Integrated 10/100 Ethernet
Modem 56K PCI Data Fax Modem
Adobe Software Adobe® Acrobat® Reader 7.0
CD ROM/DVD ROM Dual Drives: 16X DVD ROM Drive and 48X CD-RW/DVD Combo