I used to run them (MAT244 forums and wikis for 2010, 2011, 2012 and APM346 forum and wiki for 2011) on my office computer. I replaced my office computer by a newer one this Wednesday (Jan 30, 2013) and moved all the staff to this new computer changing configurations.
With (each) wiki it was straightforward: move files, change LocalSettings.php and export/import MySQL database.
With (each) forum it was more tedious and error prone as many settings are stored not in configuration files but in database which I went through editing. I could miss something (hope not!), so if you notice any problems there -- missed icons, avatars, smileys, attachments, bad links--advise me!