You could always consider a Thinkpad from the Lenovo outlet... there's an L530 going for $437.57 right now that has the following specs:
Processor: Intel® Core™ i5-3210M Processor (2.50GHz, up to 3.10GHz with Turbo Boost, 3MB Cache, 1333MHz)
Operating system: Windows 8 Standard 64 - English
Display: 15.6" HD+ (1600 X 900) LED backlight
Graphics: Intel® HD Graphics 4000
Memory: 8GB (2 X 4GB) PC3-12800 DDR3 1600MHz SDRAM SODIMM Memory
Hard Drive: 320GB, 7200RPM Serial ATA 2.5" Hard Drive
Optical Drive: DVD Recordable Serial ATA
Tack on another $100-120 for an msata SSD and you're good to go. That way you can keep the mechanical HDD while adding an SSD. I'd look into a T/W530 myself for a Thinkpad, though.