I think part of the reason for the poor response to your query is the recent bru-ha-ha we had on here between detractors and supporters of DNA testing. This has left some chastened and wary of replying in my opinion.
To directly answer your question which tests would you recommend it is hard to say because you do not really say what you want to find out. Of course I realise this is a catch 22 situation as if you don’t know what tests can do how can you say what you to find out.
However from your post
I am making the assumption that you want to find out your ethnic makeup across all your lines and going back many thousands of years. If this is the case then maybe you should do a combined test.
(the following is lifted from a post by supermoussi on another thread)
The two best current combined tests are National Geographic's Geno2 test and BritainsDNA Chromo2 Complete Combined test:-
http://www.isogg.org/wiki/Genographic_Project
http://www.britainsdna.com/products/completeOf course if you do a combined test as a woman you won’t have the YDNA results so what you could do is do the combined test for yourself and get your cousin to do the YDNA test to get your father’s Y line (the more markers tested the better so go for 67 or 111 markers). For your other half he could just do the combined test and being male would pick up his YDNA inheritance as well as get his mother line.
However if you look at the costs of the tests you will see the costs can very quickly run into hundreds of pounds so you need to think carefully.
If I was you (which I am not!) and money was unlimited then I would get
Geno 2.0 - Genographic Project Participation and DNA Ancestry Kit $200 (although supermossi says the britainsdna product is more up to date).
For your cousin 67 marker YDNA $268
For your otherhalf Geno 2.0 - Genographic Project Participation and DNA Ancestry Kit $200
All that costs about £500 so that is a major investment and you have to question whether the limited results you will get back is worth that amount. Only you can answer that.
(Oh and I am biased towards
www.ftDNA.com which is why I choose their 67 YDNA test and the Geno 2.0 test which they do for National Geographic. Others may disagree)
If anyone more knowledgeable in this field than me wants to correct anything I have said, please feel free - afterall we are all learning in this area.