Hi zhuzhu2,
As much as i want to help you in the area of general good dates for year 2011, the Tong Shu for 2011 is not out yet, so i will not know or be able to select general Tong Shu auspicious date for wedding for 2011 yet. Right now, the only way and also the right and accurate way of doing it will be using Bazi to select dates. FYI, a date reflected auspicious in the Tong Shu may still be bad for both of you if the date chosen is not compatible wtih both your Bazi.
As for Bazi wedding dates selection, it is part of my consultation service to my clients, hence i can't provide it here free in the forum or it will be unfair to my clients who paid for my service. Hope you understand.
If you have any particular date in mind, just post it here. I can advise you if it is a bad day as there are some days that are definitely bad and cannot be used for marriage; and some days that will clash to either of you or your parents, so cannot be used as well.
For 2011, the 7th lunar month falls on the 31st July - 28th August. Most people don't get married in this month due to Chinese superstitions.
In the event if the dates sslected clash with silbings or grandparents, it is perfectly ok. They just need to hide before the groom or bride step into the house. In wedding dates selection, only the couple's bazi and the parents zodiac signs are taken into consideration only. Siblings and grandparent's are not taken into consideration.
Hope this helps