Well hello everyone. I live in Toronto, Ontario, which somewhat limits my options for radio purchase as many US sellers only want to ship to CONUS, and overseas shipping is prohibitively expensive. So ideally, I'd love to find a local or Canadian seller, but that's beside the point. I've owned a Kenwood TS-820S for almost two years, and I love it. I will probably never sell or trade it as it's my first radio, and it sounds great. Eventually I'd like to buy some accessories for it. My debate is on which Kenwood model to buy next. I am leaning towards the TS-440S/AT or TS-450S/AT, possibly the TS-850 but that starts to get out of my price range. The features I am looking for are basic computer interface capability. I have read the manual for the TS-450S/690S, and it has a TNC connection, which is what I would like to do. Interfacing it to a computer for other digital modes is fine as well. I haven't read through the whole 440 manual yet, but I think it has a similar feature. A couple of questions for owners of the TS-450 -- is there actually a serial interface? Does this allow rig control, or is it only for interfacing with TNCs? It also has a RTTY terminal (as does my TS-820S) so using a serial port, connected to a relay, is enough to key from a computer without needing to just send audio (I believe many different softwares allow keying RTTY through DTS while allowing CTS/RTS or another pin to key the radio, so I could easily build a little interface board.) Note: I just took a look at the 440 manual, and it does show data in and out pins on the ACC2 plug, but not sure what these actually control. Any and all advice is greatly appreciated! It sort of boils down to price. As a student, I don't have a lot of extra cash. I'd love to get a TS-440 or 450 for $500 or less, with or without shipping, but that might be a stretch for the 450. The 440 seems to regularly be listed for under $450, which is right up my alley. I know it has more power than my TS-820S. Here in Canada, as a Basic+, I can use up to 250W DC, 560W PEP, so I'd like to get a radio that can do closer to my current legal limit. The legal limit for advanced tickets in Canada is 1000W, and I could always get an amp later if that was something I was interested in. I know that some of these Kenwoods do not have AC connectors, and thus need an external DC supply, increasing the price by up to $200. It looks like both the 440 and 450 require external supplies. When did this changeover happen? I love that my TS-820S has an internal supply! I guess this makes them more optimal for mobile installation, but who has a TS-440 or 450 in their car?! It seems a bit large... Anyway, advice on which one to pick would be appreciated, or if you know more about other Kenwood models around my price range to look out for. I'm not terribly interested in ICOM (as they are typically much pricier)... I suppose I wouldn't terribly mind a Yaesu if I got one for a good price, but I'd prefer to stay with Kenwood. Any and all comments are appreciated! 73 EDIT: It looks like the TS440 only needs a 4040 binary counter and 8251 USART chip installed to have rig control! Awesome, as these are easy to find chips and I bet many radios already have them installed.