I will add and update as i get more new ones added to the current list of timers.
To install:
Save file to your advanced combat tracker folder where you had it installed on your pc.
Once saved open up ACT and goto general options on the first tab should have a a import/export act settings area. click on the import and new window will open browse to the place you have the xml file you downloaded and select it and choose open.
Should be set for spell timers that are in list then to check goto top right of the act window there is a spell timer button click on it once new window opens do a right click anywhere in the window and should bring up another new window with tons of spells listed already. any problems please ask in game or post here.
File download: Right click and choose save target as to download