PC One don't carry enough components, you spec the machine on the Alienware site, then take that spec to the. They arrange to import of the machine from states, shipping, customes etc.

The shop outside the Sofitel that bleu might be refering to is around the back, away from the main road, Gigabyte I think, and that is the brand they stock, had a lot of over priced liquid cooled cases last time I looked.