I paid for a laptop and a server and I was told by the company that they would pay me back. They have let me go. Can I take the equipment with me since I paid for it and they never paid me back?

No, you can't revert to "take it because you didn't reimburse me for it". That's because wage and hour law in every state except California, doesn't require the employer to reimburse employees for business-related expenses. You can only sue for reimbursement in court.

Thank you for your answer. I really appreciate it!