Furry Creek is a nice dive, I'd do it way more often if it wasn't so far away.
Anyway, getting to the dive site is fairly straight forward, head north on the highway 99, take the exit to furry creek (it's shortly after porteu) and follow the signs to Olivers Landing. Once you cross the train tracks turn right and you're pretty much there. Usually when we go there we unload our gear and set up in the cul-de-sac and then go park in the parking lot. Keep the locals happy and all that. Last time I was there I was diving doubles, so I didn't bother with the cul-de-sac and just set up in the parking lot, the walk isn't too bad, easier than whytecliff by a factor of about one million.
The entry can be a little gross, there is a walkway/bike path that runs along the waters edge, somewhere along there there are some small stone steps that make things easier. I"m not totally sure where they are and have to look for them each time, but they're not far off.
As for finding the wall, what we normally do is swim out to a mooring buoy (an orange tire if I recall correctly), which is roughly north west of where you enter the water. You don't have to descend down here, but we usually do as viz can sometimes be quite crap in the shallow areas. It can also be really nice, you never know. From there on it's quite a swim to the wall. By quite a swim I mean a really freaking long one. The bottom is pretty flat and largely featureless to begin with, so use a compass and head in a general northish direction. Eventually you'll start coming across some boulders, then a bottle dump with some bones in it, a large rock that tricks you into thinking you've found the wall and then finally the wall. There is really no point in descending deeper then 30ft or so before you find the wall, you'll just be burning through your air and no deco time looking at the mud.
The wall itself is quite nice, there are some decent sponges by howe sound standards for the 100ft range, I've found octos, squid, sail fin sculpins and a variety of other things there. AS cream of wheat said, there is, or at least used to be a good size octopus/den on the far end of the wall at around 100ft. Its pretty far off and you really have to haul ass to get there.
There are some nice rock piles at around 70ft directly in front of the houses, pulmose anenomies, sea cucumbers, crabs and all that. Watch out for boats.
As far as current goes I've never experienced much, but a bit of current in low viz on the flat, featureless sandy bit can be quite disorienting.
Hopefully that's all the info you could ever want, but if you have any questions feel free to ask.