transfer files from old macbook pro to new macbook pro using mavericks

I have called Apple support about 5 times about this and have been given 3 or 4 different response none of them work.

I do not have an ethernet cable.

The computers are on same network.

I have time capsule not yet set up. Apple support told me to use usb but no port on new mac. So old mac is running OSX 10.8.5 and new one is Maverick. I cannot update files on old computer as I just get this message to sign in to my acount that used to buy old apps.I am 1.5 hours away from apple store so if i needed special cable from Apple i would have purchased it with Time Capsule. I was told that to do it wirelessly would take over a day.

Right now am puzzling over what is best to do without losing files. I dont want to lost my music files as I have had them for a long time and all were not purchased from itunes store.

Any thoughts on where to start feel free to suggest them.

Thanks Jan