I've been using these ER20 collets from CME for $5.50 each. They also have good prices on other accessories like gauge blocks and pins. Their vises are priced $122 for 4" and $166 for 6". I've been thinking of ordering the 6" vise.
CME Tools
You can order the touch screen monitor directly from Monoprice for $159.
17" Touchsreen
Steve