New routine time, any help appreicated :)

Hi all
 
Recently started a lean bulk after finishing a rather successful cut, but carried on with the same routine. Trouble is, I'm not really feeling it the next day anymore, so I'm figuring it's time to start a new routine, mix it up a bit
 
Currently doing:
 
Monday: Chest/Tris
Bench Press          5 x 8
Dips                      5 x 12
Cable Flies            3 x 10
Skullcrushers        5 x 8
Decline DB Press  3 x 10
Cable Pushdown  5  x 10
 
Wednesday: Biceps/Back
Chin ups               3 x 8
Deadlifts               5 x 5
Twist DB Curls      5 x 8
Bent over row      5 x 10
Preacher Curls     3 x 8
Lat Pulldowns      5 x 10
 
Thursday: Legs
Squats                5 x 8
Seated calf raises 5 x 15
Leg Press           5 x 10
Hamstring Curls 5 x 10
Leg Extension    5 x 10
 
Friday: Shoulders
Seated DB Press 5 x 8
Front raises        3 x 12
Military Press      5 x 8
 
So that's the current routine, but basically I'm trying to put together a new one but I'm just rubbish at picking exercises as it always ends up so similar. I want to completely shake it up so it's a shock to the system again
 
Would anyone be willing to put together a routine? Training for size by the way :) 
 
Also just out of interest, does any of that look like I'm overtraining? Or even doing enough for good gains?
Much appreciated, thanks

That routine is ok, but the lay out is a bit weird.  For instance on back day you seem to shuffle between back and bi exercises.  When you train two or more bodyparts together, start with the biggest, back in this case, do all the exercises for it and then move on the smaller bodyparts.

How many days a week do you want to train?  

Have you considered doing a push pull legs routine?  Very good for mass and strength.  

I have considered it, but wouldn't know the best exercises for that

I have been told that before to do muscle groups together rather than shuffling between, really should stop doing it

I'd like to train 4 times a week, usually would be 3, but I like giving a full day for legs to really work them