There are a few good 1st time buyer schemes out there. We have just bought our first house on one of them schemes. We needed a 5% deposit, the 1st 5 years of the mortgage is 0%. We were given a mortgage advisor and lawyer. We managed to get ourselves a 3 story, 3 bedroom semi with garage on the side. The only down side is the schemes are only available on new builds. but I was happy with that.
http://www.bellway.co.uk/special-offers
Hope this helps
Woody