Australian e-tailer Kogan is pushing harder in the tablet market, with the company set to offer two new Android-equipped tablets at under three hundred clams.

Announced today, Kogan’s two new Agora tablets arrive in both 8- and 10-inch screen sizes, each with a 1GHz processor, 4GB storage, microSD card slot, 2 megapixel front-facing camera, WiFi 802.11 b/g, HDMI, and a lone USB port. What’s more, the tablets sport a 4:3 aspect ratio similar to the Apple iPad and HP TouchPad, making the screen size slightly larger than the elongated widescreen format typically seen on Android devices.

Unlike the tablets we’ve seen this year, Kogan has chosen the Android 2.3 operating system, a version of Google’s OS that isn’t designed for tablets and is normally seen on smartphones.

The tablets join Apple’s iPad 2 and the Motorola Xoom, as well as Kogan’s own Agora 7-inch tablet which launched last year as one of the few tablets fetching under $200.

While the prices are good for Kogan’s new lineup – starting at $149 and $189 while Kogan builds the devices – the final price is still expected to be lower than that of competing tablets, with the 8-inch fetching $229 and the 10-inch $269 when they launch on November 4.