You can find good quality running tights on amazon, or sporting goods places such as Dicks, Modell's, or Bob's. They range in pries depending on the specific ones that you choose.
Amazon provides a variety of running tights for women that are of fine quality and decent reviews. You can find their best rated running tights chose which suit you.
http://www.runnersworld.com/community/forums/runner-communities/trail-running/pants-trail-running this is where you can find trail running tights. good luck!
Speedo makes a lot of running shorts and tights. Go to their site to see them and find that they aren't that expensive. Good deals are available and nice fitting shorts.
Go to dicks sporting goods to get some ronhill running tights. They carry those with many sizes and colors to choose from. Write a review while you are at it.
Adidas running tights are great for colder weather. They are specifically designed to keep your legs warm in cooler temperatures so that your workout is optimized.
Under armor has many running tights to choose from for men. They are not that expensive and lasts a long time. Your boyfriend will be happy to have them.
In men's sport American football, basketball, soccer and rugby (for rugby only at teenage level as they're illegal at professional level) also athletics
I love Skins running tights myself. However, they are very expensive and cost approximately $140.00. Now, according to my research www.amazon.com and www.skins.net sells them at probably a lower price.
Tempe Running Store is a good place to find your track and field equipment. They have a great selection and a lot of quality products at great prices.
Here is a good article on what to look for and how to choose them. http://www.livestrong.com/article/239064-the-best-winter-running-tights/ And here's at least one online store where you can purchase them. http://www.mec.ca/Search/search.jsp?Ne=1000&N=10+1655&Ntt=tights&gclid=CLaumrPntLECFWaFQAodGXMAug
It greatly depends on what type of running shoes you are looking for to be able to consider what a good running store would be for you but common, good-quality running shoe stores that you may find in New York include, The Running Company and Sports Direct. If you do not find these stores, I am very sure you would be able to find a running shoe store with no problem or effort in a shopping center in New York.
If you really want compression, CW-X is generally regarded as the best. As far as regular tights goes, every brand has good offerings and you just have to try them on and find the ones that fit you best.