We have an accountant. I think a great accountant, no matter what their fee is, is a very good investment when you have more than just a simple individual tax return.
We have our assets allocated within two companies and pay ourselves from them. It's a bit complicated and even though we pay our accountant alot of money per annum, he is well worth it to us. What he saves us by applying his knowledge to our investments is x10+ what we pay him.
That said, a financial planner is a different story. we know afew financial planners personally and their finances are a mess. Always ask them, before you hand over your hard earned money, what they invest in, what their portfolio is worth, and really really quiz them before you listen to anything they say.
If you are happy with what you hear from that angle. Listen to their advice, go and do your own research and never sign anything under pressure in the first meeting. If they do a hard sell, get up and leave. They are only after commission.
Do your own research before you go so you are educated and understand their advice, then you can also ask intelligent questions about what they are promoting. Remember that all (or most) planners are on a commission from whatever products they can sell you.
Good luck.