Seagate announced today a new 750GB external hard drive with push-button backup. Cool, you're thinking. That's three 250GB drives, right? Kinda bulky, no? Nope, that's one trim 3.5-inch hard drive with a capacity of 750GB, thanks to Seagate's own perpendicular recording technology. This revolution in hard drive technology stands bits on end, like a tightly packed platoon of soldiers, instead of laying them flat, like train tracks. This means huge capacity with a relatively small footprint. The drive inside is Seagate's own new 750GB drive (announced yesterday) from its 7200.10 family, which uses perpendicular recording technology. The drive will debut in May with a retail price of $559.