Birmingham is an all year round holiday destination with mild temperatures. For warm weather the best time to travel is from June-August. The city is proud of its many holidays and festivals such as the St Patrick's Day Parade held on March 17th, the Fusion Festival in August, Birmingham Pride at the end of May along with the International Jazz Festival in July. There's also the Birmingham International Carnival, held every two years (odd years) and the Sikh New Year, Vaisakhi, in April.
Balti is a speciality in Birmingham. Check out the Balti Triangle which has around fifty restaurants in the areas of Sparkhill, Moseley and Balsall Heath. The cost of living here is generally cheaper than in London especially where grocery and transport prices are concerned. A basic meal out will set you back around £10.
Birmingham tends to be somewhat cheaper than London and the south-east. Expect to pay 10 pounds or thereabouts for a basic meal out.
Accommodation prices will also be a little lower: a hotel room will be priced at around £35 per double, hostels are cheaper at £14 or so for a bed in a shared room.
To get to the centre of Birmingham from the airport, take the Bus number 900 which will cost around £2.20.
Single trips on buses around town are priced around £2.20 with a day travel pass costing £4.20 or so. There are also trams in Birmingham which will cost approximately £2 one way and £4.50 for a day pass.