QB 2008

What would you be switching from may I ask?

QB 2008 is great! If you're switching from an older version of QB, you won't have any problems! I especially like that when you email invoices it uses Outlook and puts it in the sent folder.

Michelle L. Long, CPA, MBA Author of: Successful QuickBooks Consulting: The Comprehensive Guide to Starting and Growing Your Own QuickBooks Consulting Business

My main annoyance is that if a memorise a customer invoice when in multi-user mode it takes over a minute to "process" it and QB can not be used till it's finished.

If I edit an existing memorised invoice the processing is instant, so why does it take so long to memorise a "new" invoice?

Everything else works very fast even though our data file (.qbw file) is about 200MB in size, which is apparently quite large by QB standards.

Prior to the upgrade we have been using QB Pro v6 since about 2000.

I am using QB 2006.

Go for it dude. Each new version gets better and better.