I really enjoyed this.  I loved all of Harry's mental digressions while he watched the drama unfold in the kitchen.  I cracked up when Uncle Vernon's purple face made him think about planting violets in the garden.  I also laughed when Harry matter-of-factly tried to imagine Mr. Tibbles without hair, as well as when he thought fondly of the garden gnomes he'd like to attract to Privet Drive.  Then, when he bargained Uncle Vernon down to three pounds per book, plus expenses, it was like a Surreal World Harry.  That was just so funny and unexpected. : ) 

Do the English really use pounds as a weight measurement?  I know that "stones" are one of the words they use, but I didn't think pounds were used as a unit of measurement over there.  Are they?

Anyway, I'm loving this story. : ) 

After I got over the shock of Snape being nice I enjoyed the chapter. Not bad at all.

Wonderful start. I really liked it.

You actually made me lose my dislike of Vernon a tad bit... and thats very hard to do. Petunia came across as a stupid little cow and that was a brilliant portrayal.

I think the next few chapters are going to be great.