This is a very good office suite, runs on Windows and Linux.
SoftMaker Presentations 2008
BasicMaker 2008 (Windows only)
Use code br31qq4e or follow the direct link. Save £43.15!!! Limited time offer only.
Thoroughly recommend it and at this bargain price it shouldn't be missed.
Quote from THEIR homepage (probably biased!):
"It doesn't have to be Microsoft after all... SoftMaker Office 2008 is the best alternative to Microsoft Office: affordable, powerful, lightning-fast, and compatible."