Hi, would anybody be able to indentify the following cacti names and
any other info on them??

http://www.drivek.com/cactus/Image003.jpg

Not a cactus - its is a Euphorbia, but which one ... I'm not too sure -
have never bothered with them.

http://www.drivek.com/cactus/Image004.jpg

This is the former Chamaecereus sylvestrii now called Echinopsis
chamaecereus aka 'peanut cactus'.

http://www.drivek.com/cactus/Image005.jpg

Cleistocactus strausii if my eyes aren't deceiving me.