The op sounds exactly like me when I first got my dart.
I wen with headers and glass packs. A lot of people don't like the sound of glass packs but I loved it with the headers on the slant.
Also paint the motor and maybe keep an eye out for a cool valve cover. Also get some nice plug wires and a cool air cleaner.
This may sound really cheesey but you can make them look good and sound good on a tight budget. Enjoy and save up!