Like another user said, you should see what your school recommend or provide. They could get the books for you cheaper or even for free and it may be better if they provide you as they'd have used it before on other year groups and would know which would be best.
Maths- I'd really suggest that you get MathsWatch CD. It's really good, I've used it and I know many others who have used it and think the same
If you want to get one of those revision guides, I'd suggest you show them to your teacher and see what they recommend. I have mymaths too but I don't use it much nor like using it and I don't think it would be helpful much because I've got mathswatch
English- I am doing the same English Language course as you. Have only started the coursework so I'm not completely sure what the exam would be about. I'd recommend
SparkNotes for Eng Lit. It gives you notes on many pieces of Literature, I'm sure a text you will be studying will be on there. Differences: Lit - Studying people's writing (novels, poems, plays) Lang - Creative (descriptive/imaginative) Persuasive/Argumentative writing. Non fiction. Newspaper articles, letters etc and speech too (speaking + listening)
So for science, you've got a Collins revision guide there for add + core. I have that too and tbh it's pretty crap, it's quite vague compared to the CGP ones which are more helpful and easy to understand. I know many people in my year who prefer using CGP than Collins (which school provided for us) Not sure about the workbook, I don't really use workbooks (i guess I cbb) and the revision guide has questions you could answer + you can try exam papers which is enough for me and I'd rather use my time studying another subject.. up to you though
See what your teacher recommends for the revison guide
I'm doing triple btw and we only got that Collins add + core book, I'm guessing we get a separate one for triple bit
Can't really give as much detailed advice on the other subjects (don't do history + different exam boards for geog) But, Pearson (I have edexcel geography with this) I find is really helpful, it's colorful, presented clearly, easy to understand. I've used Letts before too though that was in KS2/3 so can't remember what they're like
Hope that helped some
Sorry for all the writing