I've spent three days in Split last summer and found this little accomodation in the very center of the city and near the port. The view from my room was amazing: my window was just in front of Peristil. This area of Split city center is very busy even during the night so you can experience a little bruit, but if you like nightliving you are in the right place. My room was simple and ikea-style, but anyway elegant and very clean, featuring air conditioning and even free internet access. These rooms are cheaper than hotel's ones, but more expensive than a hostel room. A sort of B&B without breakfast.
Poljana Kraljice Jelene, 2
Split 21000, Croatia (HR)
Tel: 00385 21 879140
www.staytosee.com