Usually depends how many words it is.
Almost all people use Microsoft products on Macintosh. Mostly for Microsoft Office which allows the same familiarity and interoperability between Mac and PC. Most people neglect the preloaded Appleworks. Statistically the number one selling Mac program is Microsoft Office, as well Microsoft branded peripherals are the number one selling brand of Mac accessories/software.
iChat can be dowloaded at versiontracker.com. http://www.versiontracker.com/dyn/moreinfo/macosx/16887
This is one place, although the prices are rather high, in my opinion http://hardcoremac.stores.yahoo.net/ Other resellers still carry them from time to time. If your machine is capable, install OS 9.2.2 instead, as it is much more functional. The best bet is to search on Ebay for OS 8, you may find a full install disk like I did for $7.00
FCS2 works superbly on the MacBook Pro. Motion 3 might be a little juddery if you use too many effects, but other than that, it'll work smoothly. The minimum requirements are linked in the Related links section below.