Sharing Office Space

I am a freelance programmer. I am planning to rent an office to get in a proper routine and achieve *some* gain in productivity. I would like to share the office space with someone who is in similar field (computer based) (freelancer will be awesome) and is wiling to share the costs and expenses.

Anyone interested? Please email me. I don't have location, costs estimate or any idea of rent but I will be willing to negotiate all of this if someone's interested. :)