I think Creative labs is best for home use but Auzentech is good for profesional use.
Asus and Auzentech have headphone oriented soundcards.
Peavey makes a great mixer to use for home recording.
Cubase is better for the beginner. ProTools is not considered a "home" recording solutions. Try the simpler version of Cubase, Cubase Essentials.
A Rolls MX42 Mini Stereo Mixer is ideal for an in home recording studio and only cost around $47.00.
3D sound is omnidirectional
Home Recording Rights Coalition was created in 1981.
No. 3D soundcards are omni directional
at home or recording
For studio monitor headphones consider getting a pair of headphones with a high SNR like the Turtle Beach headphones.
The best soundcard for recording guitar is the Focusrite Scarlett 2i2.
There are some best Recording Studios on Manhattan. Scroll down to related links and look at "Recording Studios on Manhattan".
Second life doesn't have many issues with soundcards(unlike video cards).So you just decide what type of money you want to spend and get the best card in that range.