Hi,
I understand your dillemma. I do have a NAS, Buffalo 250 GB Linkstation, and I love it. Im a student and I need to get my access my files both from school and home. I do not know what kind of NAS you have, that information would be helpful, or if you are looking for one, Id go with the linkstation, great reviews on newegg and cnet, and it only cost about 164.00 dollars after I found an online coupon. ANYWAYS, how do you connect to the home computer from outside? Fairly simply. Get your NAS system first, install the software that came with it. Most software programs now are so simple that anyone shouldnt have an issue. During set up it will set your IP for the NAS device. Also, the software will create the NAS device as an FTP or HTTP server (its a feature of NAS usually, from what I read, FTP is better and more common). THere will be an option to set a static IP, find it and do it. That means your NAS device will always have the same IP and won't change every 3-10 minutes like some Internet providers have theirs do. From a remote computer you can put in the IP and presto, your NAS device. I know you say you arent interested in "FTP" however that is how NAS devices do it, so if you are looking for something else, then dont buy an NAS and keep looking for this magically device. Feel free to ask me any questions, I know it was a long time and a lot of research before I settled on my NAS.