$300 - Nintendo Switch SKU #1: 2 Gray JoyCons
$300 - Nintendo Switch SKU #2: 1 Neon Red and 1 Neon Blue JoyCon
The packages will include a console, two one-handed Joy-Con controllers, two wrist straps (which include expanded shoulder buttons), a grip that joins the two Joy-Con controllers into one dual-stick configuration (separate from the tablet screen), the TV connection dock, an HDMI cable, and an AC adapter.
A "charging grip" accessory, which combines the Joy-Cons into a larger controller while keeping them charged, will retail for $30.
Additional TV dock sets, with included HDMI cable and charging adapter, will sell for $90.
http://arstechnica.com/gaming/2017/01/nintendo-switch-launches-worldwide-march-3-299-in-us/
EDIT for Accessory Pricing Details:
eastman's post:
https://forum.beyond3d.com/posts/1961066/
32 gigs comes internal, os is installed so you loose some space . 720p 6.2 inch screen. Zelda can be played for 3 1/2 hours according to Nintendo's site
Pro controller $69.99 USD
A pair of joy cons $79.99
Joy con separate $49.99
Charging Grip $29.99
Dock with HDMI and AC $89.99
Joy con wheel (set of 2 ) 14.99