Hi Ricwyk; I'm in the Vancouver area too, but a long way from Burnaby. There are plenty of respectable shops in town that will rent or rent-to-own. The yellow pages are a great resource, but if you are really confused, send me an instant message and I'll recommend a shop to you out this way.
There is no substitute for a piano in good repair; after all, that is the instrument we are learning to play. However, pianos are expensive, big and heavy, require maintenance, are a pain to move, and cannot be played silently (ie: with headphones). Digitals solve these problems, but you sacrifice some touch sensitivity and audio ambience.
Grab some music today and go to a well stocked store, preferably at a quiet time of day. Play every piano and digital available for rent, or purchase if that is an option. Get one... don't delay your practice any longer! Have fun.