If you have not been to a site that in support of Sunday worship then maybe you should. In the Ten Commandments the Sabbath was not established as a "day of worship" but as "a day of rest". The priests who served in the Temple worshipped God daily and if you take the time to study the NT you will not find a specific day we are told to worship God. So if your concern is violating the Sabbath then don't work from sundown Friday to Sundown Saturday.
On the other hand if you want to put yourself under the Torah then:
Leviticus 23:1-8
23:1 The LORD spoke again to Moses, saying, 2 "Speak to the sons of Israel, and say to them, 'The Lord's appointed times which you shall proclaim as holy convocations-- My appointed times are these: 3'For six days work may be done; but on the seventh day there is a sabbath of complete rest, a holy convocation. You shall not do any work; it is a sabbath to the LORD in all your dwellings.
4'These are the appointed times of the LORD, holy convocations which you shall proclaim at the times appointed for them. 5'In the first month, on the fourteenth day of the month at twilight is the Lord's Passover. 6'Then on the fifteenth day of the same month there is the Feast of Unleavened Bread to the LORD; for seven days you shall eat unleavened bread. 7'On the first day you shall have a holy convocation; you shall not do any laborious work. 8'But for seven days you shall present an offering by fire to the LORD. On the seventh day is a holy convocation; you shall not do any laborious work.' " NAS
Now you can advocate a legalistic view all you want but the one person who did not observe all the Sabbath rules established by the rabbi's was Jesus:
SABBATH
3. Jesus and the Sabbath: Apart from His claim to be the Messiah, there is no subject on which Our Lord came into such sharp conflict with the religious leaders of the Jews as in the matter of Sabbath observance. He set Himself squarely against the current rabbinic restrictions as contrary to the spirit of the original law of the Sabbath. The rabbis seemed to think that the Sabbath was an end in itself, an institution to which the pious Israelite must subject all his personal interests; in other words, that man was made for the Sabbath: man might suffer hardship, but the institution must be preserved inviolate. Jesus, on the contrary, taught that the Sabbath was made for man's benefit. If there should arise a conflict between man's needs and the letter of the Law, man's higher interests and needs must take precedence over the law of the Sabbath (Matthew 12:1-14; Mark 2:23-3:6; Luke 6:1-11; also John 5:1-18; Luke 13:10-17; 14:1-6). There is no reason to think that Jesus meant to discredit the Sabbath as an institution. It was His custom to attend worship in the synagogue on the Sabbath (Luke 4:16). The humane element in the rest day at the end of every week must have appealed to His sympathetic nature. It was the one precept of the Decalogue that was predominantly ceremonial, though it had distinct sociological and moral value. As an institution for the benefit of toiling men and animals, Jesus held the Sabbath in high regard. As the Messiah, He was not subject to its restrictions; He could at any moment assert His lordship over the Sabbath (Mark 2:28). The institution was not on a par with the great moral precepts, which are unchangeable. It is worthy of note that, while Jesus pushed the moral precepts of the Decalogue into the inner realm of thought and desire, thus making the requirement more difficult and the law more exacting, He fought for a more liberal and lenient interpretation of the law of the Sabbath. Rigorous sabbatarians must look elsewhere for a champion of their views.
(from International Standard Bible Encyclopaedia, Electronic Database Copyright (c)1996 by Biblesoft)
I don't think you can find a better model than Jesus do you?