This extra cardio might be quite a lot so I might leave it a few weeks before I throw it in -- any thoughts?
It might be, so you can always skip it the first week, see how you feel, and add it back in the next week or the one after. It's probably not too much, and cardio is good for you. You can always take it back out if it bothers you, but you need at least a week of baseline weight-only training or you won't know what is causing your tiredness or soreness.
3x5 Bench press
3x5 Standing military press
3x5 Pendlay rows
2x15 Abs (different from workout A)
Take this with a big grain of salt, since I haven't done the program I linked to. But if it says "don't add anything until you've done this for a while" I'd do that. Start with the basics, add the pullups and dips later. But it is your body, you can feel how the workout affects you. Probably not much at first while you find the right weight level, but still.
I'd strongly advise you get Starting Strength if you're going to follow its program. The second edition is due out this month, apparently. In the meantime, you're at a university - Inter Library Loan submissions and the ISBN are all you need. Go to the library, fill one out and in a couple weeks they'll give you the book from some library. I rarely had a failure, because they can borrow from across the whole country.
Resting: 60-90 seconds between sets... ?
I'd up this - it says "several minutes" and I think John Christy recommends 3 minutes between sets. You're looking for perfect form and strength, so don't rush through it. Better 3 minutes between sets and a perfect 3x5 at working weights than a rush of 1 minute or so and sets that aren't quite perfect. Let your body recover and then do it. In a program aimed at overall conditioning and upping your metabolism, less rest is ideal. For strength, rest more.
- What two exercises (one for workout A, the other for B) can I do for my abs that will work all the muscles well (upper and lower rectus abdominis and obliques). Crunches & hanging leg-hip raises? And what about the number of sets/reps I've got for the ab exercises?
I like full military-style situps, hanging leg-hip raises when I can do them, and "bicycles" - knee-to-opposite elbow crunches, one per side = 1 rep. I mix them up.
- How do you do warmup sets for said programme? I haven't really ever done a programme like this that involves lots of compound movements, and I've never done warmup sets before. I found http://forum.bodybuilding.com/showpost.php?p=10347183&postcount=226
posted for warmup sets, but does this really mean you do 5 warmup sets?! Surely I'd be knackered before I even do my 'work' sets. I was thinking 2 warmup sets at the most... ?
It does seem like a lot, I come from a "one warmup set" background. If you are taking long rests bewteen sets and not doing too many reps on each warmup set, you should be fine. If you can squat 3x5x200#, say, a given set of 2 reps at 175# followed by a 3 minute rest shouldn't take too much out of you. But yeah, if I did it the first thing I'd change is doing a bit less warmups. Maybe that's why I'm not huge or extremely strong, though.
- Warmdown stretching and bike for 5 mins for warmdown?
Try it and see. I follow my weight routines with full-out training due to my schedule, so I don't warm down so much as eventually collapse in a heap in the corner after MMA class. But I think warmup and warmdown is really personal, you need to know what gets you rolling and what cools you down slowly. Stretching on the warmdown is a good idea, though.
Again, I apologise for the rambling nature and the million or so questions I've asked!
If you don't ask, you won't learn! I learned a lot since I started posting here by asking my own rambling questions.
Hope that helps,