Spring is well underway, and that can only mean one thing for HP: time to unveil a wave of new home PCs. The company has trotted out a host of new Pavilion PCs that pack both obligatory upgrades -- thinner, faster and new colors -- as well as a few welcome improvements. The highlight by far is the Pavilion x360 line of convertible laptops, which gets a larger 15.6-inch model (above) on top of the existing 11.6- and 13.3-inch versions. Yes, HP's most affordable hybrid is now big enough to replace larger portables. You'll also find slimmer designs for the two smaller versions, optional keyboard backlights on the two larger systems and your pick of current Intel chips ranging from a Celeron to a Core i7. When the Pavilion x360 updates arrive from May 15th through May 29th, prices will start at a frugal $380 for the 11.6-inch PC, $480 for a 13.3-inch version and a not-too-shabby $580 for the 15.6-inch model.