Madrid:Buying men's clothing?

I'd like to purchase dress pants, shirts, and shoes in Madrid. How do prices compare to those in the U.S? How quickly can items be tailored? Do the department stores have a good selection of merchandise? What stores would you recommend?

You have many different prices depending on quality, starting on maybe 20€ for a shirt and 30€ for pants, a suit could cost from 180€ (well, I don't by cloths since last year..)
I like Adolfo Domínguez, although I don't visit it often, I prefer to move around the shops in my neighbourghood. I also like Springfield, quality is a bit worse, although prices and design are OK.
More classic designs you can find in El Corte Inglés or Cortefiel. Other more fashion shops could be Zara, H&M, Pull&Bear, the shops in Fuencarral market....
More pricey around Serrano..
There are also shops where they make the shirts taking your measures.
If you cou