yeah. it's a good idea depending on how comfortable you are working with fiberglass/plexiglass/acrylic. i figured that the pre-molded acrylic stand may be one of the easiest. though some clear acrylic pegs and some chrome accent metal (thats been brushed with a sponge for an hour) would look really nice. as for the variable fan speed, i'd go for one that just has a loose cable on it that you have to adjust with a screwdriver. it's adjustable and you can add any switch you want with ease.

these ideas are way cheaper than an iCurve
MacBook 2GHz Intel Core 2 Duo w/ 2GB DDR2 RAM & 120GB SATA 5400RPM HDD
Canon Rebel XTI
Google Cr-48 Beta Laptop