Generally there aren't too many of us on here. I only know of myself and probably about 2-3 others from my class who are active on here. We just had our finals last week and people are leaving for breaks.
Regarding your question, UCLA has a requirement for Dell laptops, such as the D and E series. However, many of my classmates have non-Dell laptops, and so far there hasn't been any disciplinary actions or enforcements on the issue. Supposedly the Dell stipulation is to ensure uniformity in clinic, but I don't understand completely how that works. My feeling is that it's probably not that important (although they make it sound like it is), but you can write Noemi for further details if needed.