Welcome to Punggol! We had quite a few last min additions during our Reno too.. It's fine so long the contractors have not built it yet.. In fact I think they will gladly allow u to add cos just charge u more $$ only hehe For electrical appliances u might want to check out mega discount store? Not sure if the prices will beat Ur "bro-in-law" disc but I suppose it's worth a look since u r on budget.. We also got our downlights, t5 and bathroom lights from lighting.com.sg... I like it that it's Philips.. Keke..we almost bought the other lightings online but we managed to find this shop at shunfu area, Lifespace Concept at midview city selling the lightings we wanted at a price cheaper than shops along balestier... U can check out what they have from their website first b4 heading down ba.. Btw since u r staying with parents, do cater more storage space.. Dunno abt Ur parents but others I know tend to have loads of stuff to keep!