Most of the things we need to know aren't in your first post. And IMHO it shouldn't be US completing your pedalboard for YOU. We can give advice and stuff, but if you don't know what you want, or worse still are lazy to go and find out the different types of effect out there, we really can't help you much. I'd suggest you do a search of the forum, and if you've any questions come back and ask. I think it'll be easier that way, you won't have to wait for people to reply your thread.
Well, since you normally play alternative rock or metal, i'd suggest you invest in a good distortion unit. Beta Aivin's HM200 is a good choice for those on a budget, or you can try the Wampler Super Plextortion if you've got more cash to spare. Both available at SV, go try 'em out.