Grenzer Games has launched a Kickstarter campaign for 15mm Imperial Roman figures. These are some of the most highly-detailed 15mm figures you're going to find around. They're working on various ancient lines of miniatures, with these being the first. The end goal is to create a miniatures game for them (rules already in the works), so you can get in on the ground floor now.
From the campaign:
The campaign just got underway and is set to go for another 29 days.