timing belt change

Soo I'm over due my timing belt change, very over due in fact!! Lots of quotes off garage ranging from 360-500.....now I can pick up a gates kit for around 50-70, but the last garage I went to had wrote down auxillary belt? I have a 1.5 dci 07 plate megane, if someone can label all the parts I need as I'm sure it will be cheaper to just buy and get them fitted....also how long is the labour, some said 3 others 5 :/