Ok you have talked me into a decent power supply but i have just read this while doing some research into requirements.....

System Requirements

• Intel Pentium III (and above), AMD K7 (and above) or compatible with PCI Express slot
• Minimum 128MB of system memory
• Installation software requires CD-ROM drive
• Interactive Program guide requires Internet connection for listing updates
• Power supply of 400 (and up) watt is highly recommended for system stability

The bit that bothers me is in bold above! heres my bios:



Seem ok?