I didn't realise that tripods would come without heads. I assumed that you would be able to attach a camera straight to them. I guess when your talking head it's the gimble bit that the camera attaches too.I've got multiple tripods because not any one tripod is good at everything.
My travel tripod is a Velbon Ultra Maxi-L (it's an older model, but there are new equivalents) - it's been to New York with me twice and it's light / small enough to carry all day long. It weighs under 1 kg and is 36cm when closed. You should be able to find one of these somewhere for ~£80, but be careful with total weight - if you're using heavy equipment then it might not be suitable for you. It's also not great in strong winds so if you're a coast hugging photographer then it's not the right tripod for you.
My regular workhorse is a Manfrotto carbon fibre which is light, very stable and I can carry it up Munros and back without it every feeling heavy. However, it did cost a small fortune but it'll stay with me for life.
Looks like the up-to-date version of my Velbon is the Velbon Ultra Rexi L but it's a good £40 more than you've got in your budget. Looks like they've improved on the design to take a much higher weight, whilst maintaining a light and compact design. In my opinion, it's worth stretching as you'll get a lot of mileage out of it.
Edit: you'll also need to get a head for it, so it's going to be a good £150. Maybe try to get the older model that'll come with a free head?
Ofcourse. But I assumed. 'Wrongly' that the tripod would come with a suitable ball head or similarIf you attached the camera straight to the tripod you wouldn't have any flexibility regarding what direction your camera was pointing in, which would be a royal pain when lining up a shot.
Look for a simple ball head, you're probably looking at at least £30 (example).