Yes there is a big danger of damaging your computer if you build it on the carpet static electricity could zap any of the cards or even the mobo without you knowing it and if after you build the computer and you set it on the carpet the fans that pull air into the computer will also draw in more dust causing things to burnout early due to overheating and getting clogged with dust.
I fold for my uncle Mac, aunt Doreen and anyone who has to suffer from these DISEASES
what goes around comes around
(RIG) MSI P35 Platinum Q6600@3.6 HIS HD2600XT512mb,128bit 4gigs OCZ 1066 ddr2 Seagate barracuda sata 120 gig 2 Liteon sata DVD Burner
RaidMax AZTEC midtower, PC P&C 610watt PSU, 19" envision LCD monitor.