Whoa! As maul would say... Macros the size of texas!

Are you looking for a way to play these two classes with one button and have both of their DPS be up to par? In what situation? Is your lock the main and your priest the slave? I think you could dumb down these macros and get better results. I'm @ work now so I can't put too much thought into it, but I would suggest splitting those macros up and creating different ones for different situations.

When questing, I doubt anything is going to live past a MBLast and a SBolt / CBolt. It might live long enough for you to shadowburn / SW: death it afterwards. That was the case when I was boxing spriest / hunter... A steady shot and a mind blast usually killed the target. If not , another steady shot and a SW: pain was overkill. SW: pain , VE, VT are a waste of mana outside of an instance and I would also avoid putting anything with a cooldown in the front of a cast sequence macro. Otherwise you are going have your macros stick when changing targets. I had 3 macros for my spriest. one for questing, one for trash, and one for boss fights.

eh, I hope this made some sense. I had a point (and decent spelling) but i have had 4 calls since I started typing this. ^____^

edit: whoa spriest spells = smileys !