Personally, if you're foot loose and fancy free I'd go for it. Travelling is something I wanted to do when I was younger but always had an excuse or other commitment.
If I were to do it, I'd take a laptop, digital camera and get blogging about your journey. Get on twitter and other social sites, keep the forums up to date with your whereabouts. It would be an ideal way to build traffic and interest to your website and online persona.
Although I've never tried it I would've thought you could quite easily do the
SEO thing remotely as long as you're somewhere with an internet connection. There is always skype as another means of keeping in touch.
The internet offers up loads of options to you.