@AndRead here's a link to a thread that I'm sure will interest you - it's the Kobo discount info thread:
Kobobooks.com Discount Codes
Currently the discount code is:
and that means that you may find that any Kobo books that you're interested in may be available for 40% off if you use that code.
Also, pop into the Kobo sub-Forum - that's where you'll get the best tips/help.