Does it boot windows off the CD? If not (i hope to god not) then someone with no how could easily fix your pc. If its checking the DVD drive first but its not there, it will cry. Tell it to check the harddrive first and your sorted.
Nice try Jay, but that's the first thing I checked. Anyway, we got the DVD drive, so now I'm just waiting on the recovery disc from Dell. No idea how long that'll take.