I've bought several items recently from Dabs.
Intel i5 2500k, Asus P8Z68 Deluxe Gen3, Corsair Vengeance 2x4GB, Asus GTX570 DirectCU II. Around £600 spent.
Delivery was fast, prices great.
I emailed Customer Services as I just missed out on a special offer. My own fault entirely but I thought I'd chance it. Dabs couldn't have been more helpful. Special offer sorted immediately. :)
Email replies from their customer service were prompt, helpful and polite.
I am one happy shopper, will be using Dabs again.