Tough to go wrong on one or two of these for a budget/throw-away machine.
http://slickdeals.net/f/7646948-128gb-mydigitalssd-42mm-m-2-ngff-2242-ssd-drive-50-free-shipping
http://slickdeals.net/f/7646948-128gb-mydigitalssd-42mm-m-2-ngff-2242-ssd-drive-50-free-shipping