Samsung’s 15.6-inch R590 multimedia notebook is now available in the UK and Australia.

The Samsung R590 is a more powerful version of the R580 and features the Intel Core i5-450M 2.4GHz processor, Nvidia GeForce GT330M 1GB dedicated graphics, 4GB of DDR3 memory, 500GB of hard disk space, a DVD burner, and a 6-cell battery.

Its LED-backlit glossy display has a resolution of 1366×768 pixels.

Samsung’s new laptop also includes an integrated 1.3MP web camera, stereo speakers, 802.11n Wi-Fi, Gigabit Ethernet LAN, Bluetooth 3.0, four USB ports (including an eSATA/USB combo), an ExpressCard slot, 3-in-1 card reader, and HDMI and VGA outputs.

The 4.8-pound R590-JS02 has a blue gradation finish and runs Windows 7 Home Premium OS.

It is available via Amazon UK (R590-JS02UK) for £809, which is around 1,247 USD, and JB HI-Fi (R590-JS02AU) for 1,298 AUD or about 1,152 USD. We have no info on pricing and availability in other countries.

The Acer Aspire AS5740, a 15.6-inch laptop with the new Intel Core i3 processor, is now available in the US.

E-tailers currently offer four AS5470 models – the AS5740-5513, AS5740-5144, AS5740-5255 and AS5740-5749, all with the Intel Core i3 330M 2.13GHz processor which includes the GMA HD integrated graphics. The notebooks also feature 4GB of DDR3 memory, a 6-cell battery for “up to four hours” of run time, a 1366×768 display, and Windows 7 Home Premium OS.

The AS5740-5513, S5740-5255 and AS5740-5749 have a 320GB hard drive, whereas the AS5740-5144 has a 500GB HDD. The S5740-5255 additionally includes Bluetooth, while the AS5740-5749 has a Blu-ray Combo drive, instead of a standard DVD burner in other models.

Acer’s new Aspire laptops sport built-in web camera and microphone, stereo speakers, Dolby Home Theater audio technology, 802.11n WiFi, an HDMI output, and a multi-touch trackpad.

The available models feature a blue lid and weigh around 6.16 pounds.

The Acer Aspire AS5740-5513, AS5740-5144, AS5740-5255 and AS5740-5749 are priced at $616.75 (Amazon), $649.99 (Amazon), $629.99 (TigerDirect), and $699.99 (Newegg).

The recently announced Lenovo G560 15.6-inch “Essential G Series” notebook is available now.

The offered G560 model (06792AU, Black) comes with the Intel Core i3-330M processor at 2.13GHz, the Intel GMA HD graphics, 4GB of DDR3 memory, 320GB of hard drive space, a DVD burner, a 6-cell battery, and Windows 7 Home OS.

The notebook’s 15.6-inch LED-backlit display has a resolution of 1366×768 pixels.

On its website, the PC maker didn’t provide info on networking options, as well as on ports and slots.

The Lenovo G560 configuration has a price tag of $849 at the Lenovo website.