Did you mean August 14 or 15? If it's August 2015 I'd be tempted to use Novembers windfall to pay for the wedding.
If you save to pay debts off it changes your mindset so you don't accrue more debts, babies usually follow weddings and you don't want to get into more debt when you have dependants who rely on you.
Money saving expert usually advise NOT to pay into savings accounts while you have debts to pay off, the reasoning behind this is that debt has an interest rate much higher than savings so it makes sense to pay debt and not save for a while.
I'd dig out all the statements for the cc and o/d and write up a chart of each debt and interest rates on it. Pay the one with the highest interest first, then the next and so on until you are debt free.
If you want to put extra money into it I'd go through the bills for the house and see which ones you can realistically cut eg
Sky/virgin etc TV packages (or though losing them completely works for some people)
Broadband packages, phoning to cancel can prompt them into offering you a big discount and you don't know unless you try.
Mobile phones, do you use all the minutes, texts & data they provide? could they reduce the package and price accordingly? if you are near the end of the contract could you go PAYG and use apps like Whatsapp to message people?.
Landline, some companies charge less if you pay upfront for a year. It can be a £5 a month less for doing this. If you use the landline for calls could you use saynoto0870.co.uk to ring premium numbers for less? or free from mobiles?.
Dual fuel, if you don't have any exit fees can you switch providers and save money? do you practice any of the energy saving tips to save cash?.
Council tax, you can pay this over 12 months now. It doesn't save money but it reduces the monthly outgoings a bit eg ours is £20 a month less paying it this way so it's easier to "find" each month.
Mortgage, if you aren't fixed rate can you change providers for a better deal? you don't always have to change providers, a phone call to the mortgage company could save you money.
Water bills, if you are on a meter only using less can help this one. If you are rateable value some companies will let you go metered and switch back in under 12 months if it isn't cheaper for you.
TV Licence, compulsory for a live signal but if you don't have sky etc and can just use catchup like iplayer or 4OD you can get rid of it as long as you let them know. I got rid of ours last year.
After bills it's random spending and food bills that cost, meal planning & not buying branded foods slashes bills.
www.mumsnet.com/Talk/credit_crunch/1628874-Gas-Elec-Bills-monthly-and-SKY-so-angry
www.mumsnet.com/Talk/credit_crunch/1543785-your-top-tips-for-money-saving-and-a-more-frugal-life
www.mumsnet.com/Talk/credit_crunch/1600030-Small-money-saving-habits-petty-even
These threads are good.
Blogs like a girl called jack or mortgage free in three are good as well.