Long overdue update courtesy of new Lynxmotion Robot Project Contest, which I may enter, and me noticing that this topic is so sticky now.
The laptop, although a smaller kind, is just too large for this platform, so I bought a pair (to have a spare) of cheap 1:6 monster trucks to carry the laptop. It is back to mini-ITX for this rover. I bought 7"x7"x2" aluminum enclosure and dremelled, cut and bent it to proper shape to carry one of Intel D945GCLF2 motherboards http://www.intel.com/products/desktop/motherboards/D945GCLF2-D945GCLF2D/D945GCLF2-D945GCLF2D-overview.htm
. Just as dust and some cobwebs settled on this contraption, I discovered this: http://www.mini-box.com/M350-universal-mini-itx-enclosure?sc=8&category=87
. Since it looks way better than enclosure I made and is small enough to fit between the wheels, I'm going to buy it when Mini-Box gets more stock.
This case is amazing for size constrained mini-ITX projects. It looks like Intel DG45FC http://www.intel.com/Products/Desktop/Motherboards/DG45FC/DG45FC-overview.htm
with Core 2 Quad CPU will fit there to create the ultimate 4WD with 4 cores rover.