Meeting point: Monsieur Truffe, 90 Smith Street, Collingwood
I think the best tram to get from the city is the no. 86 to Bundoora RMIT.
Possible places we can try:
http://www.chokolait.com.au - fantastic fruit chocolates, with big fruit chunks
http://hahndorfs.com.au - very rich and smooth
Those I have not tried: