Pro3d.com Very cool sounding name. '3D' is a very popular search term ( 63973 ovt searches last month) and PRO3D is about as generic of a name as you can get. It could be used for many purposes as well since 3D applications are so widespread.
"Pro 3D" also returns 41,000+ results from Google, which is a positive factor for the term that you own.
Value: $500 to a reseller, retail $1500 to $5000. If I owned this name, I wouldn't consider anything under $5k. :D I own ProPHP.com by the way and hold it dearly.
Kolma.com - Seems to mean 'Clogging' in German?
An okay name, with some branding potential. $25 reseller, $150-200 retail.
Proasp.biz I don't deal in .biz, so this is a guestimate of about $20 reseller, $100 retail.
-RJ-