not to say decorating the village hall won't be great but... as soupdragon has mentioned could end up costing just as much to tart it up as to get somewhere else.
other places to consider, not hotels or stately homes, usually cheaper:
*any historic public schools/colleges/universities around? they're usually desperate to be in the hospitality business to earn more money, and they're much cheaper and can be just as atmospheric, if your wedding is after they've broken up.
*likewise a lot of museums do the same now
*council buildings/town halls etc some v. picturesque ones around
*or any historic pub around? was good enough for Kate Winslet first time round...
other things:
colour - white, dark green, deep red, silver
fabrics - velvet, marabou, heavy silk
flowers - holly, mistletoe, ivy, berries, deep red roses
lighting - plenty of soft lights, candles, open fire (if you can) - love the sparklers idea
drinks - mulled wine is a great idea, but it's not a wedding without fizz, is it?
food - would steer clear of trad xmas food, maybe duck, goose instead, roasted winter veg?
i want to get married again!