It seems thats pretty standard from most people Ive spoken to - somewhere from 1000 to 1500 hours per logbook. And yeah, thats the "normal" logbook, not the big thick ATC "Professional" version.
Personally I dont like the big one, because it's actually quite satisfying to finish a logbook, and you'd be robbing yourself of that.
I also keep an electronic logbook as well, on the excel spreadsheet I've made available on here in the past. I love the huge amount of number crunching the spreadsheet does for me, but I have no intention of ever stopping writing in my paper logbook as well.