Free, gratis.

Case on the bottom is effectively brand new and has a kit inside.
The case on top is Labs cast-off; I will probably just dismantle it and
trash it.
The monitor is 19" and other than a narrow band of slight vertical shadow
60% of the way across from the left, it functions perfectly.
The green box has an older kit inside. Works great, but needs a new video
card. Perfect for Ubuntu or as a fileserver.
Not pictured are a few more bits and pieces like Microsoft wireless
keyboard and mouse.
The rack is Ikea vintage.