It might be worth adding to begin with a professional job and then maintain at home if you can brave it. Reason being, often a home eyebrow pluck can end up with apostrophe shaped brows (not chic), probably because the area nearer to the nose is the most tender and I expect people avoid doing that bit, but it is, in my view essential.
If you want to go for a foundation, try a few make up counters. Often you might be able to get a sample size to take home with you and wear it a bit to see if you like the way it wears.
Produce wise, MAC are really good, as are Laura Mercier and Bobby Brown (although frankly I never got on with their products - concealer too cakey and I didn't like the texture of the foundations but that's just me). They also advocate the concealer under foundation whereas I'm a strictly concealer OVER foundation girl.
When I wore expensive foundations, I liked Estee Lauder and Clinique's the best. Some go on well, but then don't wear well during the day - eg you end up looking oily or too dry. Thats' why it's handy to have a take home sample if possible.
The make up counters will help you select products according to how your skin type and how behaves during the day. Be warned if you also mention skin care they will try and flog you their line as well, which may well be good but could end up expensive.
In a place like Boots, there are loads of foundations but you won't get the same advice as per your skin type as you would do with a premium brand.
For eye shadow I'd always go for MAC. Always. Same for lipstick.
This site is great for product reviews as well:
www.makeupalley.com/