<p>I think the max is 22.5 units/semester, but that doesn't really matter since you can easily petition to increase the cap. But what classes are you thinking of taking, and out of curiosity what classes are you taking this semester?</p>
<p>The max is 20.5 units, and I believe Telebears lets you sign up for that many and one more. So if you're at 20 units, you can sign up for one more class, bringing you up to 24-25. Beyond that you'll need to petition.</p>
<p>5 upper-div CS classes is going to be pretty crazy, but if you think your current schedule is doable......</p>
<p>As far as the unit cap goes, there isn't really a limit because you can petition for a lot more, if you can handle it. I have a friend in EECS who is taking 29 units right now, so you don't need to worry about too many units not getting approved. =)</p>