without it looking odd to your next employer?

I was in my last job for 11 months (which was my first job out of uni). I've been in my current job for a year, but don't think I'll make it much past 18 months as

a) I'm growing more disatisfied by the day

b) I have this notion of going travelling between this job and the next. I've been wanting to do it for a while and it's feasibly the only time I can do it in my life as I'll have some money saved up and won't be too far into my 'career' to really fuck anything up.

Thoughts?