My girlfriend discovered this wine in Tesco, it's called Viña Albali Tempranillo and it's pretty good. It's on the website but says it is unavailable, but I bought 6 bottles last night for £2.85 each. Tempranillo is basically a Rioja, which usually consist of 60%+ Tempranillo grape. So if you are feeling the pinch of recession/Christmas and want a budgeted New Year's Eve party, then try this.
Also at Tesco is a Freixenet Vintage Cava for when the clock strikes 12, at £6 a bottle and this seriously knocks the shit out of any Champagne. Treat your self.