4-ply baby cardigan

[jkgla]

Hi!

My daughter is expecting her first baby in February and she'd like me to knit a V-neck cardigan. I have some 4-ply wool in a nice green colour she likes. Does anyone have a pattern for a baby's cardigan in 4-ply?
Does anyone know if there are any differences in knitting needle sizes between the UK & the US - I notice that a lot of patterns on this site say 'US size 8 needles' or somesuch. I have lots of UK needles....

Very many thanks in advance

Joan (Scotland)