I completely relate. When I was pregnant with my last baby, at the gender scan the sonographer said rather unprofessionally "there's a willy and a pair of goolies" and I was horrified. I kept it together in the scan room, no smiles from me though. As soon as we were out of the room I ran through the waiting room in floods of tears and locked myself in the toilet, I cried all the way home. Fortunately my partner was really understanding and supportive. I'd wanted a girl SO MUCH. It seemed as though everyone around me were having girls, even my OH's sister who was 2 weeks behind me. I too dislike boys clothes, they're all blue and grey and brown and gloomy. Even the clothes that have a lot of colour are also striped or trimmed with grey, there's also no selection.
I have to say though, that my little boy, now 15 months is the absolute light of my life. He's so sweet and gentle, and chilled out, while many of the little girls of the same age that we know are high maintenance, tantrum throwing little madams. My LO hasn't actually had a tantrum yet (so far). People kept telling me that girls were harder to raise (though obviously, all children are individuals and I'm pretty sure my sisters and I were good children). You can't change what your baby is and when he's here you won't want to. You'll love him so much and what's between his legs won't matter a bit.
So far as clothes are concerned, dress him in what you like! He'll be completely oblivious to society's expectations for the first couple of years. My LO wears plenty of pink, along with bright colours like red (lots of red), yellows etc, I rarely even glance at the boys section, some of his clothes have frills and the only blue thing he has is a vintage pale blue floral blouse, intended for a girl I think. It's my favourite item of clothing. I put tights on him, all from the girls section too.
With this baby, I am once again hoping for a girl, I'll be disappointed if its another boy, but not so much as I know what a pleasure little boys can be. I have a lot of girls clothes, including dresses, and if this baby is a boy he'll be wearing dresses for the first six months of his life, (it was once the norm for boys anyway, oh and btw, in the 17th century, pink was a boys colour, according to what society dictated at the time, the only way these trends change is by people refusing to be held by them and chossing to do things differently).
You don't have to introduce your child to transport vehicles, you don't have to adhere to societal rules about boys and girls toys, that's all rubbish anyway, children are genderless for the first couple of years. Go for unisex stuff.
Anyway, I've run on long enough. BTW I found it helpful to talk to people sympathetic to my feelings about my situation on a website called Ingender.com
I hope you get what you want, however if you want to talk at all.. you know where I am 
) so it makes it a little extra special to know our family is complete with one of each. My little girl will have an amazing big brother to protect her from filthy teen boys. I'm soo glad I had a little boy first to protect his little sister.
