Personally I don't think the idea is too stupid. Im planning on building up a 4 monitor setup. 1x2405, flanked by 2x19" with another screen above the 2405. You could run the 6 screens with 2 PCI-E cards in SLI, with the SLI switched off and another dual head PCI card for the remaining 2 screens. IMO, 6 screens is possibly a bit overkill, and 15.4"is too small. I'd at least get a decent sized primary screen and surround it with smaller ones. As for mounting them, there are plenty of multi monitor stands out there(The biggest I have seen, supporting 18 screens). Although excpect to pay a decent amount for this.