Unempty Vintage is a custom skin suite for Samplitude (version 8 and up), loosely inspired by various vintage consoles and studio gear. This skin design presents large faders, giant "punchable" industrial-style push buttons that light up, and a separate meter bridge on top. It's also optimized for low-light usage, since the typical control room usually is rather dark.

You can download Unempty Skins here (donationware):
http://unempty.com/sam/vintage/

There are 6 Birdline Suites and 2 bundle packs to choose from. They all include skins for VIP, Track Editor, Transport and Mixer windows. Especially for the mixer, they are the only skins that support multiple screen display resolutions. So, pick the most comfortable for you and change the the way you record and mix with Sequoia / Samplitude. All prices are ONE TIME PAYMENT and include ALL PAST AND FUTURE VERSIONS

You can download Birdline-Skins here (€):
http://skins.birdline.gr/index.html

The Alloy skin suites offer a professional and ergonomic look for your favorite audio workstation program. This bundle includes the Blue Alloy Skin, Dark Alloy Skin and Silver Alloy Skin Suites.

You can download Alloy Skins here ($):
http://www.pixelarranger.de/alloy/