Microsoft Office:Mac 2008
If you have a PPC Mac, and Office:Mac 2004, save your money.
Office:Mac 2008 has all the quirks, bugs and aggravations of Office:Mac 2004, but minus the scripting support. What a deal!
If you don’t have Office:Mac, and do not absolutely need strict Office document compatibility (for example, if you aren’t the sole Mac user in a Windows work environment) consider iWork instead. iWork combined with Mail.app provides all the functionality of Office:Mac 2008/2004, with none of the aggravations. Or, if your needs are modest, consider NeoOffice.
It should be noted that Office:Mac 2008 is not a Mac version of Office 2007 for PC. The two do not share a single gene in common -- the user interface is entirely different.
And, of course, neither version of Office:Mac has a MS-Access client, because it appears that Microsoft can’t figure out how to write one.
I had to buy this overpriced mess, but I need it less and less as time wears on. By the time Snow Leopard arrives, I hope to be weaned of everything but perhaps Excel, and the occasional voyage into Parallels to access corporate databases with MS-Access.