We are a small design team operating 2 iMacs (2013 Intel i5). We are currently working live using Adobe Creative Cloud Suite (Mostly Illustrator, Photoshop & Bridge) off an 11 year old 32bit Windows 2003 server accessing 3TB of stored data, we are connected to this via ethernet CAT5e through a gigabit network switch. We are looking to replace this as current setup as it very slow and we cannot work to 2 macs off the server simultaneously very well at all. If one of the macs is saving the data is bottlenecking causing the other mac to freeze. Our average file size is between 500mb & 1gb. We are open to suggestions on the best setup anyone can recommend, we have been looking into NAS or Thunderbolt Raided Drives which could simply sit next to the 2 machines but looking at different peoples experiences it seems very varied on results this would give in terms of working from it simultaneously. If this is an option we would then need to figure out a way to back these drives up. As you can probably tell from my wording above we are not technically minded so please can you give me your suggestions in layman's terms. Really hope you guys can help Thanks in advance!