Started making money and being able to put away some cash so I want to give the misses a trip she's always wanted and just so happens next year y'all host the World Cup. So... win win.

I'm looking for places to stay that are "decent" around London. Looking to see the US and South Africa n the Olympic Stadium and maybe one more in one of the other stadiums in London or within travel distance. Is there a better website to look for hotels or even rentals for at least 7 to 10 days?

ETA: Looking in at hostels too since we don't need a whole lot of privacy and not bringing the kids.