In Texas property acquired during marriage by a gift is considered separate property. However, there is a presumption that all property acquired during marriage is community property and the burden is on you to show that the property in question is your separate property.
Having your wife's name on the title isn't enough to show that the gift was meant for the both of you. Another thing to keep in mind is that later down the road, you can draft up an agreement between the two of you confirming that the house was gifted to you alone and confirm it as your separate property.
Regarding the tax issues -- if the community estate uses community funds to pay down one spouse's separate property obligations, then it is likely that a claim for reimbursement arises. Just be aware of this issue too.
Hope this helps and good luck.