If you use Logic and price is a factor than you really want IMHO to look at Kirk Hunter's Emerald, EXS24 version. Ruby is even better and I am using it with Kontakt but the EXS24 version is not yet available.
Kirk Hunter Studios - Products
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Composer, Logic Certified Trainer, Level 2
Author of "Going Pro with Logic Pro 9"
www.jayasher.com