I have a Quinny Zapp Shopping Basket, I got it from http://stores.ebay.co.uk/Mama-Delight or www(dot)mamadelight(dot)co(dot)uk. The pushchair itself is fantastic, easy to use and very sturdy. I used it as a Travel System and also as a pushchair, I have it in Red and I think it's brilliant.
The pushciar folds up very small, which is ideal for me as I own a Mini Convertible (needs changing though). The puschair will fit in any boot, guaranteed.
At first it was poor that it never had a shopping basket, but I got it from Mama Deligh (on E-bay) and it's great.
I recommend the pushciar to anyone.