I like the Barret 95 a bit better than the 82, actually. It's a bullpup, a little lighter weight. They're both excellent weapons.
The H&K PSG-1 is also awesome, and my friend tells me it was covered in the AWB which just sunset. But at $10k, no way.
The H&K G3 is a tried and true very versatile weapon. I should probably get a scope for my AR-15, it'd be accurate out to any range I'm likely to need it for.
I'm more a fan of SMG's and close quarter battle (CQB) guns. The best of these, IMHO, is the FN P90. Unfortunetly they won't sell them to civilians, and it's illegal to own the bullets for it.
The AK74 isn't really "new", it was introduced in 1974. It uses a caliber similiar to the AR-15/M-16, based on what the Russian observed from that gun during Vietnam. I prefer the larger 7.62 AK47. The "new" AK is the AK103, updated with composite stock to replace the traditional wood.
I think my next gun will be a Benelli M-1014. If you're looking for a shopping list of the other "must have" classes...
Shotgun:
http://www.gunsamerica.com/guns/976279540.htm
Assualt Rifle:
http://www.gunsamerica.com/guns/976513481.htm
Pistol:
http://www.gunsamerica.com/guns/976497896.htm
Conceal Carry Pistol:
http://www.gunsamerica.com/guns/976384556.htm
These are my picks.
