Embarcadero's big RAD promo for this quarter is Buy One Tool, Get a Second Tool Free. It runs from now through March 28, 2012. The offer applies to new user an upgrade purchases of RAD Studio, Delphi, C++Builder and RadPHP XE2.
If you missed out on last year's deal where you could get multiple database tools free with your purchase, you can still get one free tool of your choice if you buy now.
Visit the offer page for complete details, to see the choices for free products and to see all the terms and conditions (most important is the free product has to be different from the paid product and is registered to the same user).
My colleague Sasha recommends an InterBase database as your free product choice. You get the free InterBase Developer Edition included with your RAD XE2 product and then you can choose a full InterBase Server or an embeddable Desktop or To Go deployment license as your free BOGO product.