Nice... develop it into some fan site with lots of info about TakeThat. Value would depend on their current status, they made a come-back but will they stick around. The name will only have value for as long as the band is famous.
Consider that they aren't as famous as they used to be and unless they continue to release albums they will fade away again.
You could get a decent sale to a fan if you develop it into a simple site.
Maybe even use wordpress or something.... then check out a few TT forums and offer it up for sale/auction etc. I'm sure some die-hard fans would love to get their hands on this.
Good luck with it.