Hi all,
I'm going to go against the majority and suggest improving you skills/knowledge via something like the IMC. Whilst I understand those advocating the syndicate approach, if you are looking at flying further afield than just outside the ATZ, then the benifits of a course like the IMC would be huge. I understand your notion about an instructor being back in the RHS, but the right instructor is a pleasure to fly with! I'd also consider the AOPA aeros course as it improves general handling and boosts the confidence! To sum up, if I were in your position, as a relatively low houred PPL, I would look at furthering my skills and knowledge, and try to have fun at the same time!
Whichever you decide, enjoy!