I have Alesis M1's for the turntable rig, and a Pioneer home theater setup for the PC, in 2 channel. The Alesis give a nice flat reference, while the Pioneer is great for gaming.
Yep, Stantons. The only issue I have had with them is slightly low torque, but that may be due to the wear and age of the units. They work like a charm with Serato. Definitely easier on the wallet than 1200s, and miles ahead of entry level brands.
Here's a shot of them in action in the field.
I also keep a single cheapie CDJ on hand, as I spin and scratch for performers, who often give me a CDR of their backing tracks. It's easier to swap CDRs between groups, than try to set up the laptop's audio out and bypass the SL1 box everytime. That way I can still scratch over their tracks.