yes Nutt I think thats the one - ok sounds like jumping doesn't take over the whole thing then :)
Gertrude I read its ok to try "somewhat hard" to "hard" in perceived effort terms, I have been - and I have very slightly overdone on occasion probably (though you realise and pull it back when you do).
guider I got DOMS from the squats first time in body pump :) I thought I had thighs of steel from cycling - it was much more the feeling that you get from running down steep hills (off road) - so I'm hoping all this squatting wil keep my legs in a bit more condition for running once the dreaded spectre of SPD clears off.
On an SPD note - I think I brought on SPD last pregnancy (at 14 weeks) downhill off road running - maybe jarring myself - and it was really annoying though I managed to keep moving (never got to crutches/ support belt but had a period at work where I had to work standing up with my laptop on a box to bring it to the right level!!).
This time I stopped running as soon as I found out - and have been doing pilates (only once a week - would be better if more), and adapted core in body pump - SPD is virtually non-existant this time (touch wood!) I am avoiding lunges and trying to sleep sensibly stacked on my side (pillow between knees).
For SPD check out these SPD do's and don'ts from serola (they make reputedly one of the best support belts but I didn't need one - more useful info on their site)
www.serola.net/Serola-Theory/dr-serolas-dos-and-donts.html
For SPD helping/preventing exercises check out mutu system (last time i couldn't do the "supermum" one this time I can do normal pilates superman - yay!)
mutusystem.com/exercise-for-symphysis-pubis-dysfunction-spd-or-pelvic-girdle-pain-pgp-i-pregnancy-how-exercise-can-help.html
A note on Tara lee pregancy DVD and SPD - I found i could do squats (even last pregnancy) even though my SPD was quite bad - basically anything where the weight was distributed evenly between both feet. BUT - Tara Lee recommends some poses "as particularly good" for SPD - notably pigeon pose (wrapping one leg round the other!! - see serola do's and don'ts) which (for me anyway) was practically the worse thing for my SPD!!