Since I'm not from the UK, I'm not sure which brands you have over there...
I have used:
1. nutro natural choice before, which is a good food which is usually readily available (at least in the US) the company also offers many coupons/sales, again not sure about the UK. They also have a less expensive line (nutro max here) and a good selection of canned food.
2. EVO (made by natura)- really good food, high protien and very low carbs. BUT some digestive issues and gassiness reported. Also not sure if avail. in the UK. Great canned 95% meat line of wet foods. Quite pricey but you can feed somewhat less.
3. California natural (made by natura) good food, dry is especially good for allergies as it has few ingredients. Good wet food too.
4. Orijen- I remember reading that this was available in the UK (I think) similar to EVO, but less digestive issues. Is also quite pricey like EVO.
As to the feeding at 7:30.... that's up to you! BUT I would caution that you not feed right after you get up (i.e. brush teeth, eat, and dress, then feed them) otherwise the cats will realize the sooner they wake you up the sooner they eat.
One other note about scratching posts that I forgot to mention... I like to use the corrugated cardboard type ones because they are cheap and last a pretty long time... you can get them in flat and angled models. I have heard, but not sure how accurate it is, that you should not buy a carpet scratching post as it will teach the cat to scratch on all carpet... again not sure of the accuracy of this as I have avoided carpet "just in case".