Ask HN: What web/desktop apps do you use to manage your startup?

Book-keeping: Saasu Issue/Bug Tracking: Lighthouse SVN hosting: Beanstalk Backups: Amazon S3 Site Monitoring: Pingdom

All of which I'd recommend - Saasu especially if you're based in Australia.

A couple of FREE products I would recommend are:

Simply Accounting First Step Express for accounting http://www.simplyaccounting.com/downloads/firststep/express/

and

Billing Boss for invoicing http://www.billingboss.com/