yes I am suggesting what loonylion is suggesting. You can do it with quite a few things that run linux though, you don't need a dedicated pc to do it. Quite a few 3rd party routers run some form of linux. So it would be nothing more than that.
Like I said, read the thread and all the posts I made there and the links I linked to, i'll gladly follow up with any questions you have. It is pretty simple, you'll get double download / upload speed most of the time. Sometimes it requires trying to multi segement single file downloads (through say a download manager or segmented ftp client) in order to double your speed.
Like I mentioned there, it'll be a round robin and socket based, so if its a single socket connection then it wont double up unless you segment it.
If you go on a website with like 300 images, it'll load 150 on one connection and 150 on another. It depends upon the site though and generally you set up stuff so that it doesn't break https, or else you can get funky website browsing issues.
With torrents it works perfectly, you'll see double on both upload and download (because torrents by their nature are multiple connections / sockets)
I wouldn't suggest doing it on a per packet basis. round robin through connections works much better from what i've played around with.
haha dray you linked a houkouonchi video. That guy was great, used to chat with him on irc. Did you know he passed away recently? (like feb this year) he was this guy
http://arstechnica.com/information-technology/2013/05/fios-customer-discovers-the-limits-of-unlimited-data-77-tb-in-month/