You would love it mate.
Go to the official City of Verona Box Office in Via Pallone - 5 minutes from the Colliseo. Bring your passport. You also need to have passport when entering the stadium.
I got our tickets yesterday after a short queuing time behind opera buffs. €35 for me and €27.50 for the ladies!!! Yes, women get a decent discount!!!
Nice stadium which was used in Italia 90. I think the capacity is about 38k (guess) and today with large swathes empty either side of the Roma fans I am guessing an attendance of about 30k.....open to correction if official figures available.
We drove from Lake Garda and were back in hotel within an hour of leaving the stadium.
Hope you make it some time.