Joint Venture Advice

I have been given a proposal for a joint venture on a deal I am currently in negotiations with. I am based in the UK. Up to now I have been pursuing this deal myself, self funding. I have never considered the possibility of a JV with another individual.

Our skills sets compliment each other. We would put in equal amount of equity and have the top co 50/50. I would be in the business full time for the first 12 months with the partner spending about 1/3 of a week on the acquisition.

What are the things I should consider, any pitfalls? Any important clauses to put in the Shareholders Agreement?

Thankyou in advance for your suggestions.