You could try some of these...
BARBELL DEADLIFTS if there's sufficient
weight / stiff legs also
DB SWING CLEANS - where you raise the DB about 2 inches from the floor, then swing it back 1st then forwards as fast as possible - you need big BDs though.
PULLOVERS across a bench
PRONE DB/BARBELL ROWS - lie face down on a bench (an incline bench if poss) and use either DBs, barbell or best - a cable to perform some kind of row.
PRONE SHRUGS - you do this the same as the exercise above, but try a barbell with a wide grip - don't bend the elbows at all, just shrug back - a flat bench is best, but needs elevating
BODY WEIGHT ROWS - find something at waist height to hang off - like a table, and hang off it so that your body is in an 'upside down push up' position, pull yourself up. This is easy with no extra weight, and is probably best used as a finisher.
T-BARS IMPROVISED - I train at home sometimes - and if you have a latpulldown machine you can definately do t-bars. Take the bar off the lat machine and get a peice of rope/chain/old bra whatever and tie it loosely to the end of the knurling on an olympic bar. Place the other end such that it doesn't move much (this becomes more of an issue with more weight). It's great and very flexible.