We spent about £3.5K on our wedding - we went pro for photographer (caught a very good one early on in his career who now charges 1.5x what he charged us) and semi-pro for an excellent DJ and karaoke who is a plumber and only DJs in his spare time.
I would recommend them but as they are both NW based it would be pointless.
Artificial flowers from ebay - I got mine from this seller: stores.ebay.co.uk/DENS-FLORAL-DESIGNS
Made my own buttonholes, bought a bunch of artificial flowers from ebay, some diamante pins and green florist tape.
Got a proper designer dress, tried it on in a bridal shop here, then bought it from the USA ( www.justprettystore.com ) and paid about half what it would have been here in the UK.
Made my own invitations and instead of having favours, bought in some big tins of Roses and Quality Street, and put them in glass bowls (Wilkos - 75p) in the middle of each table - centrepiece and favour all in one. Kids loved them!
We had our reception in a Britannia hotel which are offering an afternoon sit-down reception for 50 and buffet for 100, although that is probably not enough for you. But you could check them out: www.britanniahotels.com/weddings
We had the wedding there too - there was no extra charge although obvously we had to pay for the registrar to come out.
Friend with a big black caddy for the wedding car, and ribbons from ebay for about £2. I was considering a black cab and putting ribbons on it, but then the friend came to the rescue.
We did hire matching suits for the men, but we didn't have ushers so it wasn't too expensive
We begged lots of old gold from everyone we knew and traded it in at a high street jewellers - got £150 off my wedding ring.
Hoop, tiara and veil came from ebay. Earrings from Monsoon for £5. Bridemaids jewellery from Claires.
Wedding cake layrs fom M&S, hired the stand and my dh decorated it.
Place names, guest book and post box chest - all from ebay.