If anyone isn't aware of Microsoft's BizSpark program, you should definitely check it out. Basically all of MS's software free for 2 years for startups. This has helped my start up a lot, and makes good sense for them, I think.
From the FAQ:
Who is eligible for BizSpark?
Eligibile Startups must be:
Actively engaged in development of a software-based product or service that will form a core piece of its current or intended business. Startups cannot be in the business of providing services to others such as hosting, Website development, system integration, IT support services or outsourced development. For a full description of the terms of the BizSpark Program click here to view the program guide.
Privately held
In business for fewer than 3 years. Startups that are actively engaged in software development but have not yet completed the formalities of establishing a business are also eligible for entry into BizSpark.
Bringing in less than US $1 million in annual revenue. This requirement has been adjusted to add local variances calibrated to local economic conditions in the Startup’s place of business. If a Startup’s place of business is not listed below, then the revenue limit is US$1 million.