This post is really just a summary of what tools I’ll be using for the time being, both for the administration of the business and its execution.
Google Apps
Mail, calendaring, contacts and simple, shareable documents are all hosted by Google Apps for your Domain
Accounting
Provided by Saasu, also hosted. Financial transactions, invoices, purchases and simple inventory in the cloud
Modelling
TOGAF, BPMN, standard and customised UML modelling and more: Enterprise Architect by Sparxsystems – a comprehensive tool at a great price … AND it’s Australian!  Recently used Aris Express with some success, too.
For outlining and brainstorming: Freemind (I’m using the v0.9 beta) – a clean, easy to use mindmapping tool; free and open-source
Office tools
Documents/spreadsheet/presentation: Google Docs, Openoffice.org, MS Office
Browsers: Firefox, Chrome and Safari
Mail client: Web (GMail via Google Apps), Thunderbird
Communication
Voice: the mobile phone and Skype
IM: Skype and Twitter
Text: WordPress (the engine for this blog), shared Google Docs, MS Word, Scrivener (great for longer form or research-based writing) and Ommwriter (for the hippy in us all!)
Presentations: Slideshare
It will be obvious to you all that I am fairly committed to the cloud – for accessibility as well as cost reasons. I also suspect that these various providers will do a better job of back-up and recovery than I would 🙂