I feel massively happier about this. For the last few months I've been coming in but I had to use a 'hot desk' which meant no access to video watching or music playing except what I had on my iRiver, if it was fully charged.
Obviously it means no more doing the washing or playing music loud in the room, or spending the first hour when I was meant to be at work finishing Harry Potter VII but, hey. If I need to I can do a day at home.
In short: homeworking actually sapped my desire to work resulting work depressing me more due to my lack of productivity. I prefer the office.