Well since you're also from Canada I'll suggest the places I've gotten some of my stuff! For nighttime I absolutely love my simple and basic fleece pull on covers from www.sweetcheeksdiapers.com - Sweet Cheeks is in BC and I believe she offers free shipping so you'll want to check our her site. They are very plain, 300 wt polartec fleece and they really work - my son wears them 12 hours at night and no leaking in over a month!
For cuter covers I would suggest you check out www.soulmother.com - a Canadian WAHM from Manitoba (I think). Very pretty stuff but a bit of a wait for custom orders. She has fleece AIO's in stock though and they are really nice. I only have one so far, but I really like it.
Finally, I love the fleece AIO's from Sugarbums, but it is a US WAHM site - www.sugarbums.com - Heidi is great and the prices are pretty good even once you do the conversion. I was very impressed with the speed with which I got my custom order and the diapers are beautiful.
Hope this helps!