Okay, if you like the EX then go with the EX. Sounds like you can afford it. The EX/LX is just a difference in equipment levels. The Si increases performance a bit and has some stylistic features that you can't get stock on the other models. Coupe/Sedan is really a personal preference. Do you want the style of the coupe? Then get it. Will people often be riding in your backseat or will you be using the backseat a lot for other things? Then its probably better to get the sedan. With the newer body style, I think both coupe/sedan are attractive, so its really going to be about how you are using it.