When you colocate your 1U and 1U+ servers do you always provide the rails? If so where do you normally buy the rails from if your using a generic 1U case. There is a popular case by evercase which can be found here: http://www.ewiz.com/detail.php?name=CA-R9138B2

The only problem about the case! It does not come with railings and I have yet to find a place that offers affordable rails for the case. Any ideas?