Apple's Black Friday one-day sale has started with savings on Macs, iPads, iPods and more.

The "special one-day Apple shopping event" is available in stores and online, although not all products are discounted.

The best deals appear to be £81 off the cost of an iMac, with the 21.5-inch: 3.06GHz available from £918, 21.5-inch: 3.2GHz from £1,168, 27-inch: 3.2GHz from £1,318 and 27-inch: 2.8GHz Quad Core from £1,568.

If you fancy a new MacBook Pro, a similar £81 discount is available today only. The 13-inch: 2.4GHz is available from £918, 13-inch: 2.66GHz from £1,168, 15-inch: 2.4GHz from £1,418, 15-inch: 2.53GHz from £1,568, 15-inch: 2.66GHz from £1,718 and 17-inch: 2.53GHz from £1,818.

The latest MacBook Air 13-inch: 128GB has £81 off and is available from £1,018, while the 13-inch: 256GB will cost you from £1,268.

The MacBook Air 11-inch model, Mac mini, Mac Pro, iPhone, iPod classic, iPod shuffle and Apple TV are not included in the Black Friday sale.

Apple Black Friday sale

Apple's popular iPad has a £35 saving on all six models with the 16GB Wi-Fi model available for £394, the 32GB model is £464 and the 64GB model is £564. The Wi-Fi + 3G 16GB iPad is £494.01, the 32GB model is £564, while the 64GB is currently £664.

Apple also offers savings on iPods with the iPod touch and iPod nano on sale. Apple is offering a £14.99 saving on the 8GB iPod touch at £174.01, the 16GB model has a £25 saving at £224, while the 32GB has £35 off at £294.

Apple offers a £10.99 saving on the 8GB iPod nano at £118.01, while customers can save £15 off the 16GB version at £144.

Apple iPod touch

The Apple iPad Case costs £26 (£4 saving), the Apple iPad Camera Connection Kit is £21 (£4 saving), the Apple Wireless Keyboard is £51 (£5 saving), the Apple iPad Dock is £21 (£4 saving), the Apple In-Ear Headphones with Remote and Mic is £56 (£9 saving), while the Apple iPad Keyboard Dock – British is £48 (£7 saving).

The Apple Magic Trackpad is £54 (£5 saving), the Apple Magic Mouse is £51 (£5 saving), Microsoft Office for Mac Home and Student 2011 Family Pack is £98 (£11.95 saving), the TomTom Car Kit for iPhone is £78 (£21.95 saving), the AirPort Extreme Base Station is £134 (£8 saving), while the Time Capsule - 2TB is £348 (£40 saving).

Apple is also offering savings on iPhone docks and speakers, headphones, battery packs, TV tuners, hard drives, backpacks, cases, bags, satchels, sleeves and iPod nano socks.

Companies discounted in the sale include Adobe, Ally Capellino, Bowers & Wilkins,  Altec Lansing, Beats by Dr. Dre Solo HD Headphones from Monster, Sennheiser, TomTom, Kensington, Sena , XtremeMac , Vuzix, Bose, Belkin, iHome, Plantronics, Microsoft, Solio, Elgato, G-Technology, LaCie, Western Digital, HP, Optoma, Incase, Speck, Thule, Paul Smith and Matt & Nat.

Software titles discounted include Adobe Photoshop Elements 9, Parallels Desktop 6 for Mac, Parallels Desktop 6 Switch to Mac Edition, Roxio Toast 10 Titanium, Bento 3 by FileMaker, Civilization V, StarCraft II: Wings of Liberty, djay 3. Apple's iLife '11 remains at £45.

Apple adds in an email: "And while you're there don't forget Apple Online Store Exclusives like free laser engraving for iPod or iPad, signature gift wrapping and Exclusively for Apple accessories from the likes of Mulberry, Liberty's and Paul Smith."

The small print notes: "Shopping event prices are solely available on 26 November 2010 and are subject to change. Promotional pricing cannot be combined with any other offers. Not all sale products are available in all Apple Retail Stores. Product specifications are subject to change. Sale prices are limited to stock on hand and while supplies last."

Apple is also offering a "handpicked" Christmas Gift Guide with suggestions for gifts to give and receive this festive season.