CiT 1017 Part Mesh MIDI Gaming Case with with LED Fan and 500W Power Supply Unit - Black, £ 25

The 1017 case is a entry level game case with good ventilation and partial meshed front ideal for airflow included Led Fan and 500w Power Supply

Zalman Z11 Plus Midi Tower Case (ATX, M-ATX, Supports Bottom PSU Installation and Aperture Cable Management, Anti-Vibration Rubber Stand), £ 50

Make your next computer stand out from the crowds with ZALMAN Z11 Plus mid tower computer case. Its meshed front panel, black interior coating and side panel window add overall quality and sense of elegance. Three 120mm fans and two 80mm fans deliver outstanding heat dissipation for maximum system performance. separate apertures for convenient CPU cooler installation and liquid cooling tube aperture for an extra cooling, making the Z11 Plus a perfect choice for your power house, whether you upgrade your system or build it from scratch.

Aerocool Strike-X Advance Mid Tower Gaming Case - White, £ 50

High performance "Mid-Tower" for gamers and enthusiast. Aggressive "X" concept design case - a gamers’ dream! Supports longer high-end VGA cards up to 295 mm. Supports 9 x 5.25" bays and maximum 6 x 2.5"/3.5" HDDs (internal) with HDD convertor bracket. Anti-vibration pad included to dampen PSU vibration.

Thermaltake Chaser A31 Midi Gaming Case Toolless USB3.0 x 2 Side Window White, £ 60

The new Thermaltake Chaser A31 gaming case designed for computer gamers and enthusiasts that deliver a combination of cooling, performance and expandability any full tower features within this ultra-mean case. It has an e-sports appearance and outstanding protection designs that characterize a unique personality. Take a look at the side, the transparent windowed panel offers the best inner view for built system see through. Since gaming hardware produces a lot of heat, therefore this enclosure is built for maximum cool with a perforated front bezel with two 120 mm fans at front and rear. The two USB 3.0 SuperSpeed ports are located on front panel for faster data transfer and easy access. There's even an user friendly tray on top for mobile, mp3player, digital camera have lying around.

Corsair Obsidian Series 550D CC-9011015-WW Quiet Mid-Tower Cases, £ 100

The Obsidian Series 550D has been carefully engineered for noise reduction. The front and side panels are insulated with sound dampening material, and the hard drive trays and fans have soft silicon mounts to absorb vibration. The top and side panel vents are covered for noise reduction if you're not using them to install your own fans, and even the intakes are angled to reduce air noise.