Hi all,
I have a couple of questions that I hope you can answer. Just to restate my goals: I would like to build muscle mass for calorie-burning purposes, and I would like it if my arms were 'toned' and lightly defined for tank tops this summer. (I still need to lose a little fat from my arms, but it would be nice if there were strong muscles waiting underneath

) My secondary purpose with weights is to be able to set myself concrete goals that keep me going to the gym even after I've reached my goal weight. (I find the calories burned through cardio to be very motivating, but I am lazy, and my pattern is to stop working out once I've lost the weight I want to lose. I'm hoping that weight-training goals will keep me going to the gym and doing my cardio so I don't regain any weight.)
Firstly, in another thread someone (I think it was Ennay) suggested that I use the counter-weighted dip/pull up machine to work large groups of muscles instead of doing a few bicep curls and tricep pulldowns. This seems like a reasonably good idea (particularly since my pecs are *still* sore from my first use of that dip machine the other day!), but I'm wondering whether I should be doing the more specific exercises (like flys, curls, etc etc) with dumbbells as well. What do you think? Would it be optimum to work the big groups with the dip machine on day 1, individual muscles with dumbbells on day 3, and then back to the dip machine on day 5? Or doing all of them all the time, or only the big muscles, or only the individual muscles, or does it not matter? Suggestions?
Secondly, while I was discovering squats on the web, I also discovered deadlifts. This looks like a nice exercise also, but I'm a bit nervous about my lower back. It's quite weak and I have no abdominal strength

I've been using that 'hyperextension bench' to work my lower back and I find it very taxing. I can usually manage about 10 before I feel a very deep ache, and I cannot run after doing those exercises because of the tension/ache in my lower back. Should I stay away from the deadlifts until I've spent a couple of months strengthening my lower back on the hyperextension thing, or is the deadlift an entirely different sort of exercise? (And do I really need to start doing sit-ups and building some abdominal strength? I *hate* sit-ups and it always feels pointless because I'm never going to have low enough body fat for a six-pack to show through. What do you think?)
Thanks for all your help demystifiying the universe of weights! I really appreciate all the advice. (I apologise, once again, for being so long-winded. I just want to give complete information for maximally useful advice

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