The DC 10-13.4 you mention are the ones I bought having flown most of the PPL training in a school pair. I've got a pretty large head and always found them comfortable for most flights - anything up to about two hours is fine.
The only other headset I've tried is a friend's Bose-X. Now that is a seriously good ANR headset but I'm told it retails for around £600 so way outside your budget.
The only advice I was given was to try on several pairs until you find some that feel good. If you're learning in the DCs and haven't found them a problem, chances are they'll do you fine for you post-PPL flying. They also seem to hold their resale value if you want to upgrade later on.
Lunchmaster