Vanguard do a full spread, UK gov bonds, FTSE250, Europe, US, Global with or without UK, etc. Moneyvator is a good source for research.
Thank you very much for the recommendations.On the ETFs I'm seeing quite a lot of variance around the Total Expense Ratio, and many seem to be beating Vanguard - about half the cost for a similar fund. I wasn't expecting that. Are they teaser rates or hiding the costs in some other way?