Looking for a MYOB replacement | The Hickensian

I’m looking for an app, and I hope someone out there can help me! I’m fed up with the crappy carbonised MYOB for doing my accounting, and I can’t help but think there is a more native OS X app out there that would suit my needs better.

Ideally I’m looking for:

iCal integration
AddressBook integration
Ability to create invoices as pdfs, with a template thats fully customisable. MYOB is severely restricted when it comes to designing in invoice template. If it can then email the invoice at the end of it, that would be even better!
Basic reporting, but must include VAT Returns.
Import of MYOB accounts

iBiz has some of these features, but the current version just locks up on my G5. It also only handles invoicing, and needs iBank for the actual accounting features. Ideally, I’m looking for just one app to serve both needs. Let me know if I’m missing out on some great app here.

Update: Thanks for the recommendations so far, although Quickbooks isn’t an option, as the UK version is PC only. Using it via Virtual PC isn’t much better than what I’m using. Studiometry looks good, but lacks the accounting features I need – it can only do invoices as far as I can tell, and I need to track purchases and supplier payments as well.