Gordon wrote...
....
I've just downloaded Open Office 1.1.4 and was well impressed. The
spreadsheet does everything that a normal and advanced excel user
needs, and some! it also has a built-in exporter to pdf format!
....

Don't go overboard. OOo Calc version 2, when it comes out, will be much
more of a challenger to Excel. Version 1.* doesn't support conditional
counting and summing using SUMPRODUCT, nor does it handle ROW() or
COLUMN() calls inside array formulas the same way Excel does. However,
for the 80% of users who use 20% of Excel's features, it does seem
perfectly adequate. [As in the sense that OpenOffice *should* be a
Microsfot Works killer. Someday it may be a Microsoft Office killer,
but that day is still a few years off.]