Renting studio flash in SE England

Hi can anyone recommend somewhere to rent studio flash (e.g. Elinchrom, Bowens) from SE England (preferably West Sussex)? I'd like to rent for a week or at least a few days unless they are very local (Crawley). I'd need stands and modifiers too. I'd just like to try some out as I'm deciding which, if any, to purchase for use with home studio shoots and some small social events. If I can rent cheaply then I may just rent them when I need them. Thanks.