I too am something of a gender specific clothes denier. Having not found out what sex we were having, each child has been dressed in yellow / white for the first few weeks. Apparently in the US these are 'girls' colours. Having said that, for all our attempts to bring up 'children' rather than 'boys', I find myself surrounded by diggers, creepy crawlies and swords (not allowed guns), navy blue corduroy dungarees and stripes rather than flowers. I think the important thing is not to assume that pink clothes 'mean' certain things (interest in princesses, nurturing abilities, lack of ambition...) rather than deny all pretty things (or, similarly blue clothes).
I get boy shopping rage though, when the boys clothes are never reduced, when there's only a third the choice, when they all have cars / guns / branded cartoon images on.
But I'm sure I'd get girl shopping rage too, with too many frilly bits, silly slogans and shoes you can't run around in. I make lots of clothes for the boys (#3 is today wearing a pair of trousers made out of old red linen trousers of mine and lined with old pjs). Looking at all 4 of them, not one is wearing anything blue / camo / logo'ed, which I feel is something of a result!
Anyway, sparks your baby will be beautiful, whatever s/he is dressed in. I particularly favour a plain white babygrow until they're about teenagers 6months.