Heathrow to Bicester,Oxfordshire

[vrach]

3 adults + child(8yrs)+ 3 small suitcases travelling from Heathrow to Bicester,Oxfordshire(60 miles),then 2 days later
to Gatwick(90miles).Can any ABer in the UK give me an idea how much this will cost by taxi?is it possible to travel by rail/rail+ taxi? Wil I save significantly this way?
Need costing ASAP,even approximation will do!
thank you.
vrach

[grasscarp]

There is some useful information on this link
http://www.bicestervillage.com/Bicester/visito rinfo/gettinghere.asp?printme=true

[vrach]

Thank you very much!
I'm on the site and solving my problem already!