Hi Chris, I do similar myself, in as much as i do:

Chest and Arms Monday

CV Tuesday

Legs Wednesday

CV Thursday

Shoulders and Back Friday

Swimming saturday.

Day off Sunday.

Having done no hard manual work for neigh on ten years i was very week when i began my training program back in December and i suspect that is why im gaining strength so fast now, as i used to have a similar routine 10years ago when i trained regularly with my Friend Scott Law the boxer. (Local boxing fans will have heard of him) I believe the muscle memory allows fast growth to near its previous state and at some point im going to hit a plateau where i start to find it hard to grow further, and then the real work will begin.

My squats will probably never be as good as yours as i have a very week lower back due to an injury years ago, but i will keep pressing on ant trying new things and push as far as i can safely.

I use Thornton and Poulton Sports center's. More CV than resistance training, thus we only have one dumbell rack full of fixed weight Dumbells ranging from 1 - 22.5KG. There are no barbells and no squatracks, so im a bit buggered from that point of view...