hey mate.
Had a play with one of the tiffs...
Seems that maybe it was a touch out of focus... When I focus, i set the cameras gamma and brightness up full this generally gives an image of a big white circle, but you can tell focus when the edge is really sharp. it softens or feathers out around 3mm inside and outside of focus.
Heres the edit, applied a slight unsharp mask, edited the curves a touch, croped it down and used Maximum entropy deconvolution.
If you can upload one of your avi's to the IIS FTP site, I'll give it a go for you from go to woah... see what I can do... Or even better mike might have a go at it!
If they are huge, then just upload it, pm me, i'll download it then u can remove it afterwards..