tags for subcellular localisation in flies

[Benedicte Sanson]

I need to tag transmb constructs on the intracellular domain, and I 
want a good tag for doing westerns, immunoprecipitations and more 
importantly, look at the intracellular localisation of my constructs.
Does anybody know a tag that will work well for these kind of 
experiments? The tags that I can think of at the moment are Flu, Flag, 
HA, Strep and T7 (I would prefer not to use the myc-tag) they all seem 
to work well in vitro, but nobody around me knows about how they work 
for subcellular localisation in flies...
thanks in advance, 
benedicte