Sure just looking....I told myself that and before I knew it I had three.
Forester has the phase II 2.5L unless someone put a 2.2L or other engine in for some reason. All 2.5L's are interference, sohc and dohc. Phase II has the possible external peeping of coolant so make sure to use the coolant conditioner. Who just had that nice writeup about how to change the coolant each year and use two bottles of the conditioner to prevent the leaks (subaru master technician I think it said?)
It's probably an sohc, but you can tell by looking at the timing belt covers. The dohc covers are kind of bulging top and bottom to fit the cam sprockets. The pics below are of a dohc (from the EndWrench dual cam timing belt article)


What trim level does it have?
Cars101.com: 2000 Forester:Engine - Phase II 2.5 liter 4 cylinder, 16 valve Single Overhead Cam Boxer engine, Horsepower: 165 hp, 166 foot pounds of torque at 4000 rpm
Forester L model - 4 channel ABS. Vented front disc with dual caliper piston and rear drum.
Forester S model - 4 channel ABS. Vented front disc with dual caliper piston and rear disc
L: 15" steel wheel / Tires 205 / 70R 15 Raised white letter -
S: 16" alloy wheel / Tires - 215 / 60R 16" Raised White Letter
S forester adds over L model:
16" alloy wheels (L has 15" steel)
Rear disc brakes (L has rear drums)
Velour cloth interior (L has a harder finish)
Slate lower accent (L is unpainted charcoal finish)
Radio antenna inside left rear cargo area glass (L has mast ant on right fron bumper)
All Weather Package: larger outside defrosting mirrors, heated front seats, windshield wiper de-icer, limited slip rear differential Limited slip new for 2000. (not available on L