Am doing Forensics, and took a gap year, and it was the best thing for ME to do. Its not down to what other people think, if you think you can take a gap year, and come back and get back into a working environment, then go for it! Before I booked everything I wasnt too sure if it was what i wanted, but I would not change my choice at all.
As regards to the unis, almost all unis look favourably towards Gap Years, including most oxford and cambridge courses, this is because you have actually got off your own backside, and gone and done something most others wont, it shows you have courage, character and the get up and go most people dont have. It also shows that your confident and can stick to something and people who take gap years are much less likely to drop out ( i think the drop out rate for first years who took a gap year was half of that of people who didnt. the uni wants 3 years worth of money out of you, so they are bound to look favourably if your going to stick to them!)
If you want any info on gap years or the like, PM me, my gap year included:
Thailand (10 months working at an world famous English International, A thai school, and an outdoor centre)
Malaysia
Cambodia
Laos
Burma
Bali
Australia
NZ
Fiji
Cook Islands
LA
This is the ONLY oppertunity you will ever get to explore the world and find out who you really are, and once that chance is gone, it is gone forever.