I don’t know about the swimming lessons but for the running here is my suggestion.
Most people when they start running will start running either too long, too much or too fast and will after a couple of months get an overuse injury because their bodies were not trained to handle the stress it was put under during their new running training.
Since you are planning well in advance I would suggest you start on the safe side and start slow.
Stage 1: (3-5 months)
For the first 3-5 months try to go jogging at least two times a week preferably 3 times a week. You should jog very very very slowly, I mean it should be so slow that people are almost walking past you. During this time you should increase your time a little every week.
Week one: run 1 – jog 15 min, run 2 – jog 15 min, run 3 – jog 15 min
Week two: run 1 – jog 15 min, run 2 – jog 18 min, run 3 – jog 15 min
The initial weeks will not increase your conditioning or your strength so much but it is to get your ligaments and joints use to running, some strength training during this stage is also good, you seem to be use to doing that but don’t stop just because you are running, not during this stage anyway. If you are feeling any pain shorten the time you run a little but keep going (some pain is ok as long it goes away a short time after you have finished your workout, if not try to find a good physical therapist that can help before it gets chronic). Keep upping your time each week so you have reached your optimal long run time by the end of the first 3-5 months. Note that during the end of this stage you should be doing two 40-60 min runs and one 70-90 min run depending on the length of the triathlon you are planning on doing.
Stage 2: (1-2 months)
The next stage is when you start working on increasing your speed. Keep your longest run at this same very slow pace and start increasing you speed on your other two runs by doing some easy intervals like 10min easy – 1min a little faster -2min easy – 1min a little faster - ... – 10 min easy. Increase the length, but not speed, of these “slow” intervals.
Now you should be ready for a long run that’s a bit faster then what you have been doing, one run with some hard interval (for example 6-8x400 meters quite fast) and one run at 10-15km pace. Note that when you have gotten into the third stage you can find countless different suggestions of how to train, how much intervals you should be doing, how long should the long run be, should I be going at 5km pace or half marathon pace on my third run and so forth. Do what you feel seems best but try to have at least one long run and one interval run each week. Keep listening to your body and respond after that, if you stop running for a longer time then go back and start slow again for a few weeks before doing sprint work or “fast” long runs again.
Hope this help.
PS you will not find my stage 1 or 2 type of running programs in books or magazines since they usually assume people are in decent running shape to start with. If you what to follow a typical running program working the base, build and peek stages I suggest you wait and do this until after you have complete stage 1 and 2 above, if you do that you can most likely skip the base stage of that new program by them. Also note that this is only my suggestion and since I have not met you it may not be entirely correct for you.