Looks pretty :) Conceptually it's decent. However I don't think I'll be able to keep up with adding all my expenses.

What you really need is some sort of import function. My internet banking lets me export csv files (in many flavours). Importing these once a month would probably be ok.

My csv files also have a text for each transaction (also from my visa card). Being able to group transactions based on this text would be nice. Eg. all transactions with Coop, Kiwi, Meny or ICA should be grouped into groceries.