Was in 2004 and worked out to £125pw but current rates are...
Child Benefit... £ 18.10
Child Tax Credits... Not sure what it is now but was £52 in 2004
and housing benefit... Depends on where you live and rent etc.
Also if you are a single parent you can apply for a £500 one off maternity grant to help towards the cost of buying baby essentials. It's means tested so if you have savings or earning now you might not be eligible.
Have a look at http://www.jobcentreplus.gov.uk/JCP/Customers/WorkingAgeBenefits/Dev_013950.xml.html