IDG Answers is a community of experts who are passionate about technology. Ask a question or answer one below.
You could always store docs in the Cloud, and then access them from whatever machine you are on at the moment. But that alone doesn't help you with files formats, and you have to take an extra step to sync up MS Office Docs to Cloud Storage. Still, that's an option, and there are choices like OffiSync which works with Google Docs and is compatible with Word, but I'm not sure how well it works specifically with MS Office. There is also Skydrive from Microsoft, which works fine with Office, but I'm not sure about how it handles Google Docs.
Another way to go is KumoSync. First of all, if you are at all interested, it is worth trying since it is free. Once you configure it, KumoSync auto-syncs from your desktop, so you will be certain that your stored documents are always updated. You can also easily set it up to use multiple Google Doc accounts very easily. I think it is definitely worth taking a look at if you use Google Docs on multiple machines, and it should work fine with Office as well, although I can't personally vouch for that aspect of it.