Another thing about the rack rentals was anytime they had something go wrong I had to wait for their tech to go fix the problem, and on the weekends they were not on site.
I chose the ultimate CCIE Rack, and also you will want to add a 2511 access server with the octal cables. Some people actually use the 2600 with an NM module but I have not experience with that. With the 2511 you will want to go to ebay or cables&kits.com to get an AUI transiever to setup your ethernet connection. They had some cheaper options but I wanted to have the exact equipment that they were using in the INE workbooks, and so far it has been a great experience, and you can work every technology.
Correct you can download the configs from INE once you purchase the workbooks. There is also an awesome reference on here I think from DennisD about CatTools and how you can automate your config uploads.