Ask HN: What software should I include on my budget request for next year?

Ok, so my boss asked our team to submit any software we want included on the budget request for next year. For a little background, I work on an Online Banking web application for a regional bank on a team of 7 developers. We are a Microsoft .NET shop with MSDN subscriptions, but I know there are a lot of good software out there that could probably make our lives easier. What are some tools/utilities that I should take a look at and consider trying to get into the budget?

Thanks!

Mark