Here's what I look for:

1. IT valued by management

2. Flexible work hours.

3. Upgraded equipment and software

4. Training opportunities

I've worked for a company that did all 4, unfortunately that company was run using Enron business practices and the top execs are in jail. The next company that bought my location did not do #1. In fact one VP said, "IT is a necessary evil and brings no value to the company". If you ever hear something like that get out. I think only 2 or 3 new servers have been purchased since 2000 and most desktops are from the same time frame.