Just wanted to give my opinion on the Valco's- they are easy to push & comfy for your bub but the back wheels are ssssoooo wide, makes it impossible to get around in shopping centres & has to go through special registers at the supermarket. I read some bad reviews about them before I got mine but thought 'it couldnt be that bad' but it is, I used to dread going to the shops with it... We bought ours before really investigating prams, so we used it for 5 months then bought a Bugaboo. The Bugaboo is so easy to use, I regret not buying it straight up because we now use that expensive Ice Pink Valco for walking on the biketracks!!
I havent used the Quinny Buzz but have pushed it around our local baby store - I thought it was much easier to push than the Valco & so very stylish!! The Quinny Buzz's are for sale all the time on ebay & I always say to my Fiance' that they're so funky & I want one, he nearly chokes & calls me a 'pram junkie'
I hope this has helped a litle