I am using DTDC since 3 years. Never had a problem. Don't use Professional couriers, they not just make Ur parcel dealy but the item will be handled "badly". All the time when I receive couriers from sellers through Professional( I always tell the seller not to ship through professional. But they prefer it becoz of cost effective) there is damage to box or extreme dealy, traking not availability etc..
Pack Ur things pretty well, don't send the package right away. Use news paper around the original box and pase with brown plaster completly so no can even try to open thats whats inside. Use a red or green color plaster to give side likes after attatching printed address lable so the "thiefs" in the courier don't try to open or "make a hole to " see whats inside. Attatch 2 address labels on both sides for safety incase if one gets teares.
Remember packing is the main thing in shipping. Even if U use DHL and don't pack it well its worthless. So 80% of the item safety is depends upon Ur packing.
My recommended courier is DTDC, DHL both delivers quickly and safely. I have experience shipping LCDs, CPUs, Servers, Graphic cards through DTDC. If a little dealy happens they will answer to Ur question pretty fastly. Always ship through one courier so they franchise will make U as a "regular" customer so they will take care about U. The traking of DTDC is the best available U can completely from where its dispatched the date and the movement including the franchises, address, etc. They mostly deliver with in 5 days the packages between major cities will be delivered with in 3 days. Very little times I faced a dealy upto 7 days.
So this is my experience, I think its helps U.