Help choosing a travel system

Kate
U.K. Mummies and mummies to be! What pram / travel system are you buying? It's starting to stress me and hubby out! There are so many to choose from! Our budget is up to £600 but to include car seat if that much. We saw the Silver Cross on offer in Mothercare but it is the entry level model with the small wheels. We've been advised to get one with sturdy big wheels. Any recommendations and suggestions on where to buy welcome please