Ask HN: What would you recommend to put on a web development team's IT budget?

If you had an 'unlimited' budget (you can have anything, as long as you can justify the cost as being useful to the team and the business), what would you recommend?

What tools, software, hardware would help to make your team more productive? This specifically relates to web design but any resources are open for suggestion.

Examples include monitoring tools, backup utilities, etc. I'm not talking about coffee/furniture/etc.