Networking inside a house

Hey guys , i did search the forum before posting.
Basically i need to set up a network in a fraternity house but the problem is everything has to be done from scratch. From routers/switches to ethernet plugs everything has to be bought. There are about 15 rooms in the house and every room needs to have atleast 2 working connections. i was hoping if you guys can suggest what kind of equipment to buy including router, switches, modem, and other equipment needed. Basically the way i want to set up is the 30 ethernet connections and wifi as well. Budget is under $600 so if you guys have anything please help. O yeah its comcast as ISP. Basic format of the house is pretty much 2 floors and the “server room is pretty much on the 2nd floor at the very end of the hallway”. Currently ethernet plugs are running from the switch to every room through ceiling.
Answer #1
Can anyone help please ?
Answer #2
How much speed do you have coming from comcast? Whats your bandwidth?
Answer #3
It sounds like you already have a single wired connection per room working already. If you just need to add another wired connection per room, you will need to get one switch and 3 additional Ethernet cables per room. Hook one cable from the Ethernet jack in each room to the switch and the other two from the switch to the computers or other devices in that room. If you need wireless, just get wireless routers instead of regular routers or switches. Depending on if you get routers or switches, additional configuration may be needed.
If you want to re-run wires, you can buy a single 100-port router and put that in the server room. Then you can run two cables to each room to that router instead of just one. In this case, you will need lots of CAT5 (or CAT6 if you want gigabit connectivity) cables, a patch panel for the server room and twice as many ethernet cables as total devices to be connected. One of these cables goes from the router to the patch panel in the server room. the other cables go from the ethernet jack in each room to a connected device. A cable tester is also a good idea to test the cables after they are installed.