ConceptDraw is a technical drawing software. It features vector drawing with a variety of clipart, text tools, and more. It usually retails for ~$200 USD.
Skip the official link, download the software from CNET here
Use registration code: CP7R-197C-C4EC-2B69-3B11-1 (Everyone gets the same code).
Screenshots
It can be used for drawing nearly all kinds of business and technical diagrams and enables users to exchange documents with many popular applications, including MS PowerPoint, MS Visio, CAD applications.
Via dealnews and Slickdeals
Certainly worth a look at that price!
Thanks