I think the iMac should be your first adquisition!!! You have a huge screen and then once you save enough money, you get your macbook (I'd go for the Macbook air, coz you will only use it to move your files one place to another, and a 32gb usb may be enough! its thin and it isnt heavy)
That's what I intended to do, but I couldn't make up my mind when my current laptop began having some problems 2 months ago. I think it will be used less when getting the iMac & it could survive till I get the Macbook (I thought about the MBA as well but I'll leave it when it's time to get it).
I really like getting the iMac first, I think I'll go with that choice. Thank you very much for taking some time to help me out, Thank you.