Advice for remortgaging please

gearfreak

Hi,
So I made a bit of a mistake with my existing mortgage and thought my mortgage had 19 years left on it at a rate of £624/month, turns out its actually got 24 years left on it (don't ask why I didn't check this before ).

So I hadn't bothered remortgaging my existing mortgage as the rate was looking ok, but obviously now I could possibly reduce it to 17/18 years with the same repayment or keep the same period of 24 years and have a mortgage repayment reduced by about £150 each month.

For info my outstanding mortgage is approx. £110,000 and I brought the house in 2007 for £147,500, with my monthly repayments being £624 with the Coventry and I am not tied in.

I have a few queries:

Should I reduce the mortgage term to 17/18 years with the monthly payment being approx the same as it is now, or do I keep the 24 years, reduce the payments and have the ability to overpay when I want? (I am off on maternity leave soon at the end of may if that makes a difference, but I have money saved up for that).

Do I go for a fixed rate over 2 years or 5 years? Or would you recommend something else?

I'd like some recommendations on mortgage companies and products as I would like the ability to be able to port the mortgage in the future and to overpay more than 10% if I want to.

My other concern is that Zoopla is saying my house is currently worth around £122k which is obviously alot less than I paid for it and I am worried that this will effect the LTV and therefore the best mortgage deal we can get. Although I have email them as they don't have the price I paid for the house on their site, just the price somebody paid for it in 2001 which was a lot less, so I'm wondering if this will effect their valuation.

Hope that makes sense?
Thanks