Hi D.,
I had the same experience with one of my children and I, just like the others who have responded, put a lot of pacis in bed with him at night so he wouldn't have a hard time finding them....it worked like a charm.
I honestly would not suggest giving him his fingers instead because you won't be able to take those away from him when he is older and it is very hard to break them of that habit. Children who suck on their fingers or thumb usually have more orthodontic issues later in life than those who take a paci.
Don't beat yourself up trying to wean him from his paci right now. He is still young enough to need the sucking motion to soothe himself while he tries to sleep. When he is somewhere between 1-2 years, you can then try to wean him from them.
What I did to wean mine from the paci is I made it into a little game: Start off letting him throw various pieces of trash in the trash can, explaining that once something goes in the trash, it sould never be taken back out, instead it is taken outside and the trashman comes to get it....it's good to do this on a trash day where he can actually catch the excitement of watching the trash man dump the trash (if you have a trash where he has to step on the lever to open the lid, that works the best), then say "Let's take all of your pacis and throw them into the trash can since you are such a BIG BOY now!" (I said this with much excitement in my voice). Into the trash can they would go. Then later, when he would start crying for his paci, I would say, "Remember, you threw them in the trash can because you are such a BIG Boy and you don't need them anymore." I always had a stuffed animal on hand that he could love on when he needed soothing. After a couple of nights, he didn't need anything else to soothe him and he would brag to others about what a big boy he was for throwing away his pacis all by himself.