Located opposite Lynnmall, this Cheesecake Shop (franchise store) is awesome! They have such a great range of yummy cheesecakes to choose from (typically $30+). They also do non-cheesecake varieties like carrot cakes - and they will also take on customised cake orders for birthdays, weddings and the like.
When I shop here I tend to use my Entertainment Nook voucher, which saves about 25% off the retail price (so about $10 off a cheesecake). If you don't want a whole cheesecake they do also sell some cakes by the slice in the chiller. These seem to be around $5+ but they're big slices packed into take away plastic, and represent great value. I've never been disappointed with my purchases here - they are ALWAYS yummy.