I visited the Avanquest warehouse recently and found a few copies of all sorts of packages that I can sell off for cost plus packaging. For the Mac versions I have a few 2D v2 that have come back from a shop, nothing wrong with them apart from a slightly squashed box, £20 each.
For the PC, I have quite a few training CDs written for v12, but would be a good start for use with any package, these I can give away with any purchase of TurboCAD.
TurboCAD Professional v11, Autodesk Inventor Plug-In, £10
TurboCAD Professional 12, just the disk, £50.
A TurboCAD Deluxe 12, £10
And a pile of Constraint Manager Training CDs free to anyone buying any professional version.

And completely off the CAD subject, I also came across a few versions of a remarkable piece of astronomy software called Starry Night. I’ve always been fascinated with astronomy and this package really brings the universe to life. I’ve got everything from one called Sky Explorer, which is a starter, for £20 up to the Pro Plus which retails at £180, but can let go for £60 and Pro that retails for £98, which I can post out for £45 – but I only have about a dozen. If you go to www.avanquest.co.uk, you can find more info on Starry Night