Epson will let you rock your presentations with with four of 'em. The company's just released EMP-1700, EMP-1705, EMP-1710, and EMP-1715 projectors all feature video wall capabilities that'll let you use up to four of them simultaneously from the same computer, each acting as an independent display. Ok, so projectors lack the immediate je ne sais quoi of a wall of plasma or LCD screens, but it's a heckuva lot cheaper. The projectors themselves are all otherwise fairly run of the mill, each with a standard 1,024 x 768 resolutions and brightness ratings between 2200 and 2700 lumens. The top end EMP-1715 also adds built-in WiFi capabilities, which should help keep the cable clutter under control. All four are now available (in Japan) for between 248,000 and 378,000 Yen ($2,100-$3,200 US).
[Via About Projectors]